Litigated Patents


● U.S. Patent No. 4,873,662: "Information handling system and terminal apparatus therefor"

● U.S. Patent No. 5,093,862: "Data carrier-controlled terminal in a data exchange system"

● U.S. Patent No. 5,367,627: "Computer-assisted parts sales method"

● U.S. Patent No. 5,367,672: "Apparatus for retrieving data using the remainder of a hashed search key to identify a group of keys and comparing the key to the group of keys"

● U.S. Patent No. 5,369,702: "Distributed cryptographic object method"

● U.S. Patent No. 5,388,101: "Interactive nationwide data service communication system for stationary and mobile battery operated subscriber units"

● U.S. Patent No. 5,444,816: "Dynamic codebook for efficient speech coding based on algebraic codes"

● U.S. Patent No. 5,471,593: "Computer processor with an efficient means of executing many instructions simultaneously"

● U.S. Patent No. 5,534,878: "Radio with retractable antenna"

● U.S. Patent No. 5,581,804: "Nationwide communication system"

● U.S. Patent No. 5,590,403: "Method and system for efficiently providing two way communication between a central network and mobile unit"

● U.S. Patent No. 5,615,342: "Electronic proposal preparation system"

● U.S. Patent No. 5,659,891: "Multicarrier techniques in bandlimited channels"

● U.S. Patent No. 5,679,977: "Semiconductor chip assemblies, methods of making same and components for same"

● U.S. Patent No. 5,680,452: "Distributed cryptographic object method"

● U.S. Patent No. 5,701,392: "Depth-first algebraic-codebook search for fast coding of speech"

● U.S. Patent No. 5,715,315: "CATV systems"

● U.S. Patent No. 5,717,755: "Distributed cryptographic object method"

● U.S. Patent No. 5,737,604: "Method and apparatus for independently resetting processors and cache controllers in multiple processor systems"

● U.S. Patent No. 5,754,946: "Nationwide communication system"

● U.S. Patent No. 5,754,976: "Algebraic codebook with signal-selected pulse amplitude/position combinations for fast coding of speech"

● U.S. Patent No. 5,774,527: "Integrated telephone and cable communication networks"

● U.S. Patent No. 5,809,428: "Method and device for processing undelivered data messages in a two-way wireless communications system"

● U.S. Patent No. 5,852,326: "Face-up semiconductor chip assembly"

● U.S. Patent No. 5,870,683: "Mobile station having method and apparatus for displaying user-selectable animation sequence"

● U.S. Patent No. 5,890,195: "Dram with integral sram comprising a plurality of sets of address latches each associated with one of a plurality of sram"

● U.S. Patent No. 5,892,976: "System for parallel port with direct memory access controller for developing signal to indicate packet available and receiving signal that packet has been accepted"

● U.S. Patent No. 5,893,584: "Method and apparatus for opening a gas container"

● U.S. Patent No. 5,894,506: "Method and apparatus for generating and communicating messages between subscribers to an electronic messaging network"

● U.S. Patent No. 5,898,781: "Distributed cryptographic object method"

● U.S. Patent No. 5,915,210: "Method and system for providing multicarrier simulcast transmission"

● U.S. Patent No. 5,918,159: "Location reporting satellite paging system with optional blocking of location reporting"

● U.S. Patent No. 5,941,972: "Storage router and method for providing virtual local storage"

● U.S. Patent No. 5,946,651: "Speech synthesizer employing post-processing for enhancing the quality of the synthesized speech"

● U.S. Patent No. 5,963,481: "Embedded enhanced DRAM, and associated method"

● U.S. Patent No. 5,978,972: "Helmet system including at least three accelerometers and mass memory and method for recording in real-time orthogonal acceleration data of a head"

● U.S. Patent No. 6,043,760: "Language-dependent letter input by means of number keys"

● U.S. Patent No. 6,055,439: "Mobile telephone user interface"

● U.S. Patent No. 6,133,627: "Semiconductor chip package with center contacts"

● U.S. Patent No. 6,138,184: "System for parallel port with direct memory access controller for developing signal to indicate packet available and receiving signal that packet has been accepted"

● U.S. Patent No. 6,151,485: "Radio telephone"

● U.S. Patent No. 6,213,391: "Portable system for personal identification based upon distinctive characteristics of the user"

● U.S. Patent No. 6,221,318: "Process and apparatus for distributing fluids in a container"

● U.S. Patent No. 6,233,691: "Apparatus for reducing computer system power consumption"

● U.S. Patent No. 6,282,436: "Portable telephone"

● U.S. Patent No. 6,389,541: "Regulating access to digital content"

● U.S. Patent No. 6,425,035: "Storage router and method for providing virtual local storage"

● U.S. Patent No. 6,433,419: "Face-up semiconductor chip assemblies"

● U.S. Patent No. 6,438,697: "Demand-based processor clock frequency switching"

● U.S. Patent No. 6,453,302: "Computer generated presentation system"

● U.S. Patent No. 6,465,893: "Stacked chip assembly"

● U.S. Patent No. 6,504,515: "High capacity broadband cellular/PCS base station using a phased array antenna"

● U.S. Patent No. 6,511,199: "Construction of hand tool set"

● U.S. Patent No. 6,560,461: "Authorized location reporting paging system"

● U.S. Patent No. 6,567,389: "Method and arrangement for high-speed data transmission in a mobile telecommunications system"

● U.S. Patent No. 6,604,047: "Non real time traffic system for a navigator"

● U.S. Patent No. 6,658,576: "Energy-conserving communication apparatus selectively switching between a main processor with main operating instructions and keep-alive processor with keep-alive operating instruction"

● U.S. Patent No. 6,671,494: "Small, battery operated RF transmitter for portable audio devices for use with headphones with RF receiver"

● U.S. Patent No. 6,694,433: "XML encryption scheme"

● U.S. Patent No. 6,751,670: "Tracking electronic component"

● U.S. Patent No. 6,892,136: "Non real time traffic system for a navigator"

● U.S. Patent No. 6,968,469: "System and method for preserving internal processor context when the processor is powered down and restoring the internal processor context when processor is restored"

● U.S. Patent No. 7,051,018: "Multimedia search system"

● U.S. Patent No. 7,069,448: "Context oriented crypto processing on a parallel processor array"

● U.S. Patent No. 7,082,437: "Multimedia search system"

● U.S. Patent No. 7,092,509: "Contact center system capable of handling multiple media types of contacts and method for using the same"

● U.S. Patent No. 7,121,982: "Computer interactive isometric exercise system and method for operatively interconnecting the exercise system to a computer system for use as a peripheral"

● U.S. Patent No. 7,272,655: "Delivering electronic content"

● U.S. Patent No. 7,330,330: "Systems for self-servowriting in multiple portions with multiple passes per servowriting step"

● U.S. Patent No. 7,421,741: "Securing digital content system and method"

● U.S. Patent No. 7,552,087: "Electronic transaction receipt system and method"

● U.S. Patent No. 7,562,150: "Delivering electronic content"

● U.S. Patent No. 7,673,059: "Tracking electronic content"

● U.S. Patent No. 7,742,989: "Digital receipt generation from information electronically read from product"

● U.S. Patent No. 7,840,437: "System for data management and on-demand rental and purchase of digital data products"

● U.S. Patent No. 7,916,684: "Wireless communication network providing communication between mobile devices and access points"

● U.S. Patent No. 8,112,356: "System and method for providing automated secondary purchase opportunities to consumers"

● U.S. Patent No. 8,606,698: "Electronic transaction receipt system and method"

● U.S. Patent No. 8,719,090: "System for data management and on-demand rental and purchase of digital data products"

● U.S. Patent No. 8,955,029: "System for data management and on-demand rental and purchase of digital data products"

● U.S. Patent No. 9,053,494: "System for data management and on-demand rental and purchase of digital data products"