Recently Expired Patents

Recently expired US patents from the last 30 days. Expired patents enter the public domain and may be freely used. Updated daily via USPTO data.

5,315 patents
Type:

Auditor system

7539725PTA
Expired: 3/27/268d ago

Method of processing a sampled spread spectrum signal stream

7539276ContPTA
Expired: 3/27/268d ago

Internally replenished enclosure

7538972ContPTA
Expired: 3/27/268d ago

Brake rotor resurfacing

7536935PTA
Expired: 3/27/268d ago

System and method for a communication network

7535894PTA
Expired: 3/27/268d ago

Integrated sensing display

7535468PTA
Expired: 3/27/268d ago

Cardiac rhythm management system with exercise test interface

7532924PTA
Expired: 3/27/268d ago

Method of providing multiple data paths using a mobile terminal and related devices

7532907ContPTA
Expired: 3/27/268d ago

Method of communication between objects

7532589PTA
Expired: 3/27/268d ago

Optical path device

7529002PTA
Expired: 3/27/268d ago

Liquid crystal display device

7528827PTA
Expired: 3/27/268d ago

Charged particle beam processing apparatus

7528393PTA
Expired: 3/27/268d ago

Vitamin D analog—NEL, methods and uses thereof

7528122ContPTA
Expired: 3/27/268d ago

Methods for detecting executable code which has been altered

7526811PTA
Expired: 3/27/268d ago

Bridging subnet broadcasts across subnet boundaries

7525963PTA
Expired: 3/27/268d ago

Bicone pattern shaping device

7525501ContPTA
Expired: 3/27/268d ago

Method and apparatus for human brain imaging using a nuclear medicine camera

7525095ContPTA
Expired: 3/27/268d ago

Reciprocating power tool having a vibration-damping handle

7523790
Expired: 3/27/268d ago

Power supply apparatus

7521912ContPTA
Expired: 3/27/268d ago

Methods of forming metal wiring in semiconductor devices using etch stop layers

7521357PTA
Expired: 3/27/268d ago

Method for high-pressure processing

7520938PTA
Expired: 3/27/268d ago

Systems and methods for managing inventory of items held in a cabinet using radio frequency identification (RFID)

7518516Cont
Expired: 3/27/268d ago

Organic electroluminescent device

7518307PTA
Expired: 3/27/268d ago

Method and apparatus for conditional memory ordering

7516309PTA
Expired: 3/27/268d ago

Apparatus for cooling computer parts and method of manufacturing the same

7515417Cont
Expired: 3/27/268d ago

Semi-automatic multiplexing system for automated semiconductor wafer testing

7511517PTA
Expired: 3/27/268d ago

Ethylene terpolymer waxes, their preparation and their use

7511107PTA
Expired: 3/27/268d ago

Plasma display panel

7508136PTA
Expired: 3/27/268d ago

Modular functional star-disc system

7500422ContPTA
Expired: 3/27/268d ago

Adaptive file delivery system and method

7500010ContPTA
Expired: 3/27/268d ago

Transmitter apparatus and wireless communication apparatus

7496334ContPTA
Expired: 3/27/268d ago

Multiple-user graphical programming and analysis environment

7493595PTA
Expired: 3/27/268d ago

Golf ball mixing and dispensing apparatus

7490975ContPTATD
Expired: 3/27/268d ago

Breast compression for digital mammography, tomosynthesis and other modalities

7489761Cont
Expired: 3/27/268d ago

TFT array inspecting apparatus

7488936PTA
Expired: 3/27/268d ago

Process for production of a frozen food product

7488504ContPTA
Expired: 3/27/268d ago

Peptides for discrimination of prions

7482172PTA
Expired: 3/27/268d ago

Reflective crack relief layer that is permeable

7479185PTA
Expired: 3/27/268d ago

Separate data and coherency cache directories in a shared cache in a multiprocessor system

7475193PTA
Expired: 3/27/268d ago

Membrane arrays and methods of manufacture

7473533PTA
Expired: 3/27/268d ago

Back light module having concave-down luminance distribution

7470053PTA
Expired: 3/27/268d ago

Assembled/linked locking apparatus

7467833ContPTA
Expired: 3/27/268d ago

Sensor component with a cavity housing and a sensor chip and method for producing the same

7464603Cont
Expired: 3/27/268d ago

Methods for diagnosing and treating kidney cancer

7459280PTA
Expired: 3/27/268d ago

Access device for data-holding body and electronic equipment incorporating the access device

7458511PTA
Expired: 3/27/268d ago

Systems and methods for providing a combination financial product

7457776PTA
Expired: 3/27/268d ago

Method for producing printed wiring board

7455533PTA
Expired: 3/27/268d ago

Waste high-pressure fluid processing method

7452729PTA
Expired: 3/27/268d ago

Exit tray and image forming apparatus including the same

7450897PTA
Expired: 3/27/268d ago

Interface arrangement for opto-electronic data transfer, and plug-in opto-electronic transceiver

7447437ContPTA
Expired: 3/27/268d ago
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