Assignee
QUESTECH LTD
GB·12 granted patents·170 citations·filing 1987–1998
Top patents by PatentIndex Score
12 records- 0181US5663868AStackable electronic equipment assembly with improved circuit board cooling arrangementQUESTECH LTD·Filed 1995·Granted Sep 2, 1997·54 cites·6 claims
- 0281US5153726ARecording and editing of moving television picturesQUESTECH LTD·Filed 1987·Granted Oct 6, 1992·38 cites·6 claims
- 0359US6239846B1Digital video effects, apparatus and methodQUESTECH LTD·Filed 1998·Granted May 29, 2001·25 cites·18 claims
- 0448US4918530AProcessing of video image signalsQUESTECH LTD·Filed 1989·Granted Apr 17, 1990·10 cites·5 claims
- 0547US4879597AProcessing of video image signalsQUESTECH LTD·Filed 1988·Granted Nov 7, 1989·12 cites·9 claims
- 0637US5293233ADigital video effects with image mapping on to curved surfaceQUESTECH LTD·Filed 1991·Granted Mar 8, 1994·9 cites·17 claims
- 0735US5227884AProcessing of video image signalsQUESTECH LTD·Filed 1991·Granted Jul 13, 1993·4 cites·11 claims
- 0835US4847691AProcessing of video image signalsQUESTECH LTD·Filed 1988·Granted Jul 11, 1989·9 cites·2 claims
- 0932US5220428ADigital video effects apparatus for image transpositionQUESTECH LTD·Filed 1989·Granted Jun 15, 1993·3 cites·11 claims
- 1029US5524091AAccurate digital dividerQUESTECH LTD·Filed 1994·Granted Jun 4, 1996·3 cites·5 claims
- 1128US5067133AError-correction of stored television signalsQUESTECH LTD·Filed 1987·Granted Nov 19, 1991·0 cites·8 claims
- 1225US5822015AProviding an accurate tally indication of sources in use for outputQUESTECH LTD·Filed 1995·Granted Oct 13, 1998·3 cites·20 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →