PRIVACY POLICY

Last Updated: February 14, 2026

Introduction

Welcome to patentsunset.com.

patentsunset.com ("us", "we", or "our") operates https://patentsunset.com (hereinafter referred to as the "Service").

Our Privacy Policy governs your visit to https://patentsunset.com and explains how we collect, safeguard, and disclose information that results from your use of our Service.

We use your data to provide and improve the Service. By using the Service, you agree to the collection and use of information in accordance with this policy. Unless otherwise defined in this Privacy Policy, the terms used in this Privacy Policy have the same meanings as in our Terms of Service.

Our Terms of Service ("Terms") govern all use of our Service and together with the Privacy Policy constitute your agreement with us ("Agreement").

Definitions

SERVICE means the https://patentsunset.com website and patent expiration date lookup service operated by patentsunset.com.

PERSONAL DATA means data about a living individual who can be identified from those data (or from those and other information either in our possession or likely to come into our possession).

USAGE DATA is data collected automatically either generated by the use of the Service or from the Service infrastructure itself (for example, the duration of a page visit).

COOKIES are small files stored on your device (computer or mobile device).

DATA CONTROLLER means the natural or legal person who (either alone or jointly or in common with other persons) determines the purposes for which and the manner in which any personal information are, or are to be, processed. For the purpose of this Privacy Policy, we are a Data Controller of your Personal Data.

DATA PROCESSORS (OR SERVICE PROVIDERS) means any natural or legal person who processes the data on behalf of the Data Controller. We may use the services of various Service Providers in order to process your data more effectively.

DATA SUBJECT (OR USER) is any living individual who is using our Service and is the subject of Personal Data.

Information Collection and Use

We collect several different types of information for various purposes to provide and improve our Service to you.

Types of Data Collected

Personal Data

While using our Service, we may ask you to provide us with certain personally identifiable information that can be used to contact or identify you ("Personal Data"). Personally identifiable information may include, but is not limited to:

Email address
First name and last name
Phone number
Address, State, Province, ZIP/Postal code, City
Payment Information (credit card details, billing address)
Cookies and Usage Data

We may use your Personal Data to contact you with newsletters, marketing or promotional materials, and other information that may be of interest to you. You may opt out of receiving any, or all, of these communications from us by following the unsubscribe link or by emailing us at support@patentsunset.com.

Usage Data

We may also collect information that your browser sends whenever you visit our Service or when you access the Service by or through a mobile device ("Usage Data").

This Usage Data may include information such as:

Your computer's Internet Protocol address (e.g., IP address)
Browser type and version
The pages of our Service that you visit
The time and date of your visit
The time spent on those pages
Unique device identifiers
Diagnostic data
Other diagnostic data

When you access the Service with a mobile device, this Usage Data may include information such as:

The type of mobile device you use
Your mobile device unique ID
The IP address of your mobile device
Your mobile operating system
The type of mobile Internet browser you use
Unique device identifiers
Other diagnostic data

Patent Search Data

When you use our patent lookup service, we may collect and store:

Patent numbers you search for
Search timestamps
Search frequency and patterns
Results viewed
Features used

This information is collected to:

Improve our Service and algorithm accuracy
Understand user behavior and preferences
Provide customer support
Detect and prevent abuse or excessive use
Monitor for unauthorized API access or misuse

Data Sources: Our Service retrieves patent information from the United States Patent and Trademark Office (USPTO) Office of Data and Policy (ODP) API, PatentsView PatentSearch API, and other publicly available USPTO databases. We have no control over the accuracy, completeness, or timeliness of data provided by these third-party sources.

We do not sell or share your individual search history with third parties for marketing purposes.

Location Data

We may use and store information about your location if you give us permission to do so ("Location Data"). We use this data to provide features of our Service and to improve and customize our Service.

You can enable or disable location services when you use our Service at any time by way of your device settings.

Tracking & Cookies Data

We use cookies and similar tracking technologies to track the activity on our Service and hold certain information.

Cookies are files with a small amount of data which may include an anonymous unique identifier. Cookies are sent to your browser from a website and stored on your device. Other tracking technologies are also used such as beacons, tags, and scripts to collect and track information and to improve and analyze our Service.

Note: We avoid cookies where possible, however this clause provides protection in case any first-party or third-party cookies are delivered to users on our Service.

You can instruct your browser to refuse all cookies or to indicate when a cookie is being sent. However, if you do not accept cookies, you may not be able to use some portions of our Service.

Examples of Cookies we may use:

Session Cookies - We use Session Cookies to operate our Service.
Preference Cookies - We use Preference Cookies to remember your preferences and various settings.
Security Cookies - We use Security Cookies for security purposes.
Advertising Cookies - Advertising Cookies may be used to serve you with advertisements that may be relevant to you and your interests.

Other Data

While using our Service, we may also collect the following information where necessary and with your consent:

Age or date of birth
Nationality and citizenship
Employment information
Education details
Professional credentials
Company or organization affiliation
Industry or field of work
Purpose for patent searches
Other relevant information you provide

This information helps us understand our user base and improve our Service for specific professional and research needs.

Use of Data

patentsunset.com uses the collected data for various purposes:

To provide and maintain our Service
To notify you about changes to our Service
To allow you to participate in interactive features when you choose to do so
To provide customer support
To gather analysis or valuable information so that we can improve our Service
To monitor the usage of our Service
To detect, prevent, and address technical issues, abuse, and unauthorized access
To monitor for unauthorized API access, reverse engineering attempts, or violations of our Terms of Service
To fulfill any other purpose for which you provide it
To carry out our obligations and enforce our rights arising from any contracts entered into between you and us, including for billing and collection
To provide you with notices about your account and/or subscription, including expiration and renewal notices, email-instructions, etc.
To provide you with news, special offers, and general information about other goods, services, and events which we offer that are similar to those that you have already purchased or enquired about unless you have opted not to receive such information
In any other way we may describe when you provide the information
For any other purpose with your consent
To improve our patent expiration date calculation algorithms and accuracy
To detect abuse, excessive use, or violations of our Terms of Service

Retention of Data

We will retain your Personal Data only for as long as is necessary for the purposes set out in this Privacy Policy. We will retain and use your Personal Data to the extent necessary to:

Comply with our legal obligations (for example, if we are required to retain your data to comply with applicable laws)
Resolve disputes
Enforce our legal agreements and policies
Provide the Service

We will also retain Usage Data for internal analysis purposes. Usage Data is generally retained for a shorter period of time, except when this data is used to strengthen the security or to improve the functionality of our Service, or we are legally obligated to retain this data for longer time periods.

When your account is deleted or upon termination of your subscription, we will delete or anonymize your Personal Data within a reasonable timeframe, unless we are required to retain it for legal, tax, or regulatory purposes.

Transfer of Data

Your information, including Personal Data, may be transferred to — and maintained on — computers located outside of your state, province, country, or other governmental jurisdiction where the data protection laws may differ from those of your jurisdiction.

If you are located outside the United States and choose to provide information to us, please note that we transfer the data, including Personal Data, to the United States and process it there.

Your consent to this Privacy Policy followed by your submission of such information represents your agreement to that transfer.

patentsunset.com will take all steps reasonably necessary to ensure that your data is treated securely and in accordance with this Privacy Policy and no transfer of your Personal Data will take place to an organization or a country unless there are adequate controls in place including the security of your data and other personal information.

Disclosure of Data

Legal Requirements

patentsunset.com may disclose your Personal Data in the good faith belief that such action is necessary to:

Comply with a legal obligation
Protect and defend the rights or property of patentsunset.com
Prevent or investigate possible wrongdoing in connection with the Service
Protect the personal safety of users of the Service or the public
Protect against legal liability

Business Transfers

If patentsunset.com is involved in a merger, acquisition, or asset sale, your Personal Data may be transferred. We will provide notice before your Personal Data is transferred and becomes subject to a different Privacy Policy.

Other Disclosures

We may disclose your information:

To our subsidiaries and affiliates
To contractors, service providers, and other third parties we use to support our business (subject to confidentiality obligations)
To fulfill the purpose for which you provide it
For any other purpose disclosed by us when you provide the information
With your consent in any other cases
If we believe disclosure is necessary or appropriate to protect the rights, property, or safety of the Company, our customers, or others

Security of Data

The security of your data is important to us, but remember that no method of transmission over the Internet or method of electronic storage is 100% secure. While we strive to use commercially acceptable means to protect your Personal Data, we cannot guarantee its absolute security.

We implement appropriate technical and organizational security measures including:

Encryption of data in transit and at rest
Secure authentication systems (via Clerk)
Regular security assessments
Access controls and authentication requirements
Secure payment processing (via Stripe)
Regular data backups
Employee training on data protection

Despite these measures, you acknowledge that:

Internet transmission is not completely secure
Unauthorized access may occur
You provide information at your own risk

If you become aware of any security breach, please contact us immediately at support@patentsunset.com.

Your Data Protection Rights Under GDPR

IMPORTANT NOTICE FOR NON-U.S. USERS

This Service is intended solely for use by persons located in the United States and subject to United States jurisdiction. Our Service, data collection practices, data processing systems, and data protection measures are designed to comply with United States federal and state laws, including the California Consumer Privacy Act (CCPA) and California Privacy Rights Act (CPRA), but are not designed to comply with the data protection laws of other jurisdictions, including the European Union's General Data Protection Regulation (GDPR) or other international data protection frameworks.

If you access or use this Service from outside the United States, you do so at your own risk and in violation of our Terms of Service. By continuing to access or use this Service from outside the United States, you expressly acknowledge and agree that:

Your personal data may be collected, processed, stored, and transferred in a manner that does not comply with the GDPR, UK GDPR, or other data protection laws applicable in your jurisdiction.
You knowingly and voluntarily waive any and all rights you may have under the GDPR or other applicable data protection laws, including but not limited to the rights enumerated below.
You will not assert any claims, file any complaints, or initiate any proceedings against patentsunset.com or any related parties based on alleged violations of GDPR, UK GDPR, or any other non-U.S. data protection laws.
You release and hold harmless patentsunset.com and all related parties from any liability arising from our failure to comply with GDPR or other non-U.S. data protection requirements.
Any data subject access requests, deletion requests, or other rights requests will be handled at our sole discretion, and we make no commitment to honor such requests from non-U.S. users.

GDPR Rights (For Informational Purposes Only)

The following data protection rights exist under the General Data Protection Regulation (GDPR) for residents of the European Union (EU) or European Economic Area (EEA). However, as stated above, by accessing our Service from outside the United States, you waive these rights and release us from any obligation to provide them.

For informational purposes, GDPR provides the following rights:

The right to access – The right to request copies of your Personal Data.
The right to rectification – The right to request correction of inaccurate or incomplete information.
The right to erasure ("right to be forgotten") – The right to request erasure of Personal Data under certain conditions.
The right to restrict processing – The right to request restriction of processing under certain conditions.
The right to object to processing – The right to object to processing of Personal Data under certain conditions.
The right to data portability – The right to request transfer of data to another organization or directly to you.
The right to withdraw consent – The right to withdraw consent at any time where processing was based on consent.
The right to lodge a complaint – The right to complain to a Data Protection Authority.

PLEASE NOTE: While U.S.-based users may contact us at support@patentsunset.com regarding their data, non-U.S. users acknowledge that these GDPR rights do not apply to them by virtue of their decision to use this Service in violation of our geographic restrictions. We are under no obligation to respond to data subject access requests, deletion requests, or other GDPR-related requests from users accessing our Service from outside the United States.

You acknowledge that any requests made under GDPR or similar laws will be handled at our sole discretion and that we may decline to honor such requests without liability. You further acknowledge that our failure to comply with GDPR or similar laws shall not constitute a breach of our Privacy Policy, Terms of Service, or any duty owed to you, and shall not give rise to any claim or cause of action.

Complaints and Regulatory Actions

If you are located outside the United States: You expressly agree that you will not file any complaint, report, or notification with any data protection authority, supervisory authority, privacy commissioner, regulatory body, or governmental agency (including but not limited to EU Data Protection Authorities, the UK Information Commissioner's Office, the Irish Data Protection Commission, or any similar bodies worldwide) regarding our data collection, processing, or protection practices. You further agree that you will not initiate, support, or participate in any regulatory investigation, enforcement action, or proceeding against patentsunset.com or any related parties.

By continuing to use this Service from outside the United States, you waive any right to lodge complaints with supervisory authorities and agree to hold harmless patentsunset.com and all related parties from any regulatory fines, penalties, sanctions, or enforcement actions arising from your use of the Service from outside the United States.

Your Data Protection Rights Under CalOPPA

CalOPPA is the first state law in the United States to require commercial websites and online services to post a privacy policy. The law's reach stretches well beyond California to require any person or company in the United States (and conceivably the world) that operates websites collecting Personally Identifiable Information from California consumers to post a conspicuous privacy policy on its website.

According to CalOPPA, we agree to the following:

Users can visit our site anonymously
Our Privacy Policy link includes the word "Privacy" and can easily be found on the page specified above
Users will be notified of any Privacy Policy changes on our Privacy Policy page
Users are able to change their personal information by emailing us at support@patentsunset.com

Our Policy on "Do Not Track" Signals:

We honor Do Not Track signals and do not track, plant cookies, or use advertising when a Do Not Track (DNT) browser mechanism is in place.

Your Data Protection Rights Under CCPA

If you are a California resident, you are entitled to certain rights under the California Consumer Privacy Act (CCPA).

You have the right to request that we disclose:

The categories of personal information we have collected about you
The categories of sources from which the personal information is collected
The business or commercial purpose for collecting or selling personal information
The categories of third parties with whom we share personal information
The specific pieces of personal information we have collected about you

You also have the right to:

Request deletion of your personal information (subject to certain exceptions)
Opt-out of the sale of your personal information (Note: We do not sell personal information)
Not be discriminated against for exercising your CCPA rights

To exercise your CCPA rights, please contact us at support@patentsunset.com.

We will verify your identity before processing your request. You may designate an authorized agent to make a request on your behalf.

Service Providers

We may employ third-party companies and individuals to facilitate our Service ("Service Providers"), provide the Service on our behalf, perform Service-related services, or assist us in analyzing how our Service is used.

These third parties have access to your Personal Data only to perform these tasks on our behalf and are obligated not to disclose or use it for any other purpose.

Analytics

We may use third-party Service Providers to monitor and analyze the use of our Service.

Google Analytics

Google Analytics is a web analytics service offered by Google that tracks and reports website traffic. Google uses the data collected to track and monitor the use of our Service. This data is shared with other Google services. Google may use the collected data to contextualize and personalize the ads of its own advertising network.

Privacy Policy: https://policies.google.com/privacy
Data Processing Terms: https://business.safety.google/adsprocessorterms/

You can opt-out of having your activity on the Service made available to Google Analytics by installing the Google Analytics opt-out browser add-on. The add-on prevents the Google Analytics JavaScript from sharing information with Google Analytics about visit activity.

PostHog Cloud

PostHog Cloud is a product analytics service operated by PostHog, Inc.

For more information on what data PostHog Cloud collects and how it is used, please visit their Privacy Policy: https://posthog.com/privacy

Authentication and User Management

Clerk

We use Clerk for authentication and user management services. Clerk is operated by Clerk, Inc.

For more information on what data Clerk collects and how it is used, please visit their Privacy Policy: https://clerk.com/legal/privacy

Advertising

We may use third-party Service Providers to show advertisements to you to help support and maintain our Service.

This may include services such as:

Google Ads
Microsoft Advertising (Bing Ads)
Social media advertising (Facebook, Twitter, LinkedIn, Pinterest, etc.)

Each advertising service operates under its own privacy policy. We encourage you to review their policies to understand how they collect and use your information.

Email Marketing

We may use third-party email marketing service providers to send you newsletters, promotions, and other marketing communications. These providers may include but are not limited to:

Mailchimp
SendGrid
Klaviyo
Customer.io
Other email service providers

By providing your email address to us, you consent to our sharing of your email address and related information (such as name, subscription status, and usage data) with these service providers solely for the purpose of sending you communications on our behalf.

These email service providers:

Only process your data on our behalf
Are contractually required to keep your information confidential
May not use your information for their own purposes
Must comply with applicable data protection laws (GDPR, CAN-SPAM, etc.)

You can opt out of marketing emails at any time by clicking the unsubscribe link in any email or by contacting support@patentsunset.com.

Payments

We may provide paid products and/or services within the Service. In that case, we use third-party services for payment processing (e.g., payment processors).

We will not store or collect your payment card details. That information is provided directly to our third-party payment processors whose use of your personal information is governed by their Privacy Policy.

Stripe

We use Stripe for payment acceptance, processing, and subscription management. Stripe is operated by Stripe, LLC.

For more information on what data Stripe collects and how it is used, please visit their Privacy Policy: https://stripe.com/privacy

Stripe has been audited by a PCI-certified auditor and is certified to PCI Service Provider Level 1, the most stringent level of certification available in the payments industry.

Links to Other Sites

Our Service may contain links to other sites that are not operated by us. If you click a third-party link, you will be directed to that third party's site. We strongly advise you to review the Privacy Policy of every site you visit.

We have no control over and assume no responsibility for the content, privacy policies, or practices of any third-party sites or services.

Children's Privacy

Our Service does not address anyone under the age of 18 ("Children" or "Child").

We do not knowingly collect personally identifiable information from anyone under the age of 18. If you are a parent or guardian and you are aware that your Child has provided us with Personal Data, please contact us at support@patentsunset.com.

If we become aware that we have collected Personal Data from children without verification of parental consent, we take steps to remove that information from our servers.

Changes to This Privacy Policy

We may update our Privacy Policy from time to time. We will notify you of any changes by:

Posting the new Privacy Policy on this page
Updating the "Last Updated" date at the top of this Privacy Policy
Sending you an email notification (for material changes)

Changes are effective when posted on this page. We encourage you to review this Privacy Policy periodically for any changes.

Your continued use of the Service after we post any modifications to the Privacy Policy on this page will constitute your acknowledgment of the modifications and your consent to abide and be bound by the modified Privacy Policy.

Contact Us

If you have any questions about this Privacy Policy, please contact us:

By email: support@patentsunset.com

By visiting this page on our website: https://patentsunset.com

Last Updated: February 14, 2026