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USPTO Patent Rankings Data through Dec 31, 2025
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Robert Billing — 10 Patents

QUQuestech: 9 patents #1 of 25Top 4%
Crowthorne, GB: #5 of 33 inventorsTop 20%
Overall (All Time): #481,000 of 4,157,543Top 15%
10 Patents All Time
Robert Billing has been granted 10 US patents while listed as an inventor at Questech. The first was granted in 1989 and the most recent in May 2001. Robert Billing ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Robert Billing in Crowthorne, GB.

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6239846 Digital video effects, apparatus and method 2001-05-29
5524091 Accurate digital divider 1996-06-04 $323,000
5293233 Digital video effects with image mapping on to curved surface Nicholas Barton 1994-03-08 $84,000
5220428 Digital video effects apparatus for image transposition Nicholas Barton 1993-06-15 $106,000
5153726 Recording and editing of moving television pictures 1992-10-06 $54,000
5067133 Error-correction of stored television signals 1991-11-19 $32,000
4922345 Processing of video image signals Nicholas Barton, Hugh K. Littlejohn 1990-05-01
4918530 Processing of video image signals Nicholas Barton 1990-04-17 $60,000
4879597 Processing of video image signals Nicholas Barton, Paul K. Burgess 1989-11-07 $111,000
4847691 Processing of video image signals Nicholas Barton 1989-07-11 $113,000