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QUESTECH LTD

Overview
  • Total Patents
    72
About

QUESTECH LTD has a total of 72 patent applications. Its first patent ever was published in 1978. It filed its patents most often in United Kingdom, EPO (European Patent Office) and United States. Its main competitors in its focus markets audio-visual technology, computer technology and basic communication technologies are MOMOSAKI KOHEI, KALEIDESCAPE INC and SONY UK LTD.

Patent filings per year

Chart showing QUESTECH LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Billing Robert 29
#2 Barton Nicholas 18
#3 Littlejohn Hugh Kendal 4
#4 Stalley Anthony Donald 3
#5 Davies Trevor 3
#6 Gale Timothy Kevin 2
#7 Burgess Paul Kevin 2
#8 Tyson Peter 2
#9 Jones Anthony Richard 2
#10 Jones Antony Richard 1

Latest patents

Publication Filing date Title
GB9706916D0 Improvements in and relating to the processing of digital video images
GB9424388D0 Tally processing system
GB9418534D0 Improvements in and relating to housings for electronic equipment
GB9312747D0 A device for use in digital processing of a graphic image containing a straight line
GB9312745D0 Accurate digital divider
GB9211433D0 Improvements relating to colour television signal decoding
GB9209535D0 Data signal decoding device
GB9207506D0 Digital colour television signal processing
GB9207184D0 Improvements in high speed sorting
GB9206582D0 Improvements in digital signal processing
GB9202613D0 Improvements in and relating to digital filters
GB9019164D0 Improvements in and relating to the processing of video image signals
GB9013151D0 Digital signal processing system
GB9007343D0 Data processing system
GB9004148D0 Signal processing apparatus
GB9001010D0 Switching of emitter coupled logic data signals
GB9000674D0 Improvements in and relating to the production of digital video effects
GB8822269D0 Improvements in & relating to production of digital video effects
EP0260998A2 Improvements in and relating to the processing of video image signals
GB8713531D0 Colour television decoding apparatus