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

Roy J. Burt — 4 Patents

TPTrilogy Computer Development Partners: 3 patents #2 of 25Top 8%
DEDigital Equipment: 1 patents #1,005 of 2,100Top 50%
Sunnyvale, CA: #5,603 of 14,302 inventorsTop 40%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Roy J. Burt has been granted 4 US patents while listed as an inventor at Trilogy Computer Development Partners. The first was granted in 1986 and the most recent in July 1990. Roy J. Burt ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Roy J. Burt in Sunnyvale, CA, US.

Patents per Year

Patents granted per year, 1986 to 1990Bar chart with a peak of 2 patents in 1986.peak 21986: 2 patents19861988: 1 patents19881990: 1 patents1990

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4940510 Method of etching in the presence of positive photoresist 1990-07-10 $12,801,000
4737839 Semiconductor chip mounting system 1988-04-12
4577398 Method for mounting a semiconductor chip John W. Sliwa, Chune Lee, John MacKay, Cindy A. Johnson 1986-03-25
4574470 Semiconductor chip mounting system 1986-03-11