Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DS

Douglas E. Stewart — 3 Patents

CCCompaq Computer: 2 patents #518 of 1,604Top 35%
TLThe Marconi Company Limited: 1 patents #42 of 193Top 25%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Douglas E. Stewart has been granted 3 US patents while listed as an inventor at Compaq Computer. The first was granted in 1982 and the most recent in October 2001. Douglas E. Stewart ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Douglas E. Stewart in Frimley Green, TX, GB.

Patents per Year

Patents granted per year, 1982 to 2001Bar chart with a peak of 1 patents in 1982.peak 11982: 1 patents19822000: 1 patents20002001: 1 patents2001

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6301270 Right to left matching of device address numbers with provided integrated services digital network destination numbers 2001-10-09 $33,338,000
6112260 Method and apparatus for redirecting input/output device data in a computer system through use of debug registers Arnold R. Colterjohn, Peter James Brown 2000-08-29 $98,531,000
4312002 Combined radar and infrared scanning antenna 1982-01-19