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GEMSTAR DEV CORP

Overview
  • Total Patents
    200
  • GoodIP Patent Rank
    190,032
About

GEMSTAR DEV CORP has a total of 200 patent applications. Its first patent ever was published in 1989. It filed its patents most often in United States, EPO (European Patent Office) and Japan. Its main competitors in its focus markets audio-visual technology, electrical machinery and energy and computer technology are KEEN PERSONAL MEDIA INC, PURE DIGITAL TECHNOLOGIES INC and STARSIGHT TELECAST INC.

Patent filings per year

Chart showing GEMSTAR DEV CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yuen Henry C 120
#2 Kwoh Daniel S 86
#3 Mankovitz Roy J 59
#4 Leung Elsie Y 55
#5 Macrae Douglas B 34
#6 Westberg Thomas E 23
#7 Ward Thomas E 18
#8 Leung Wing P 13
#9 Sutton Jon 12
#10 Ng Art 12

Latest patents

Publication Filing date Title
US2010257553A1 Systems and methods for advertising traffic control and billing
US2011022620A1 Methods and systems for associating and providing media content of different types which share atrributes
US2011016492A1 Systems and methods for forwarding media asset events
US2010333151A1 Cross platform entertainment architecture
US2010293457A1 Systems and methods for alphanumeric navigation and input
US2005204384A1 Method and apparatus for displaying television programs and related text
US2004230992A1 Method and apparatus for displaying video clips
USRE41993E Apparatus and method for improved parental control of television use
US2004103439A1 Access to internet data through a television system
US2003237088A1 Use of two remote controllers in parental control
AU2003216494A1 System and method for preprogrammed purchasing of television offered products
AU2003219944A1 Video clipping system and method
AU2003213614A8 Two-way communications link at sub-operating system level
WO02079945A2 Systems and methods for electronic off-line catalog
US8006260B2 Apparatus and method for parental control using V-chip plus+ and master password
AU6634700A Method and apparatus for programming of a vcr recording
US6463206B1 Television and video cassette recorder system with an electronic program guide
US6859799B1 Search engine for video and graphics
EP1135932A1 Apparatus and method for preventing unauthorized circumvention of television program blocking function
US6233734B1 System and method for controlling the broadcast and recording of television programs and for distributing information to be displayed on a television screen