Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Darrell R. Parham — 3 Patents

Oracle: 2 patents #5,565 of 14,854Top 40%
TETeradyne: 1 patents #241 of 581Top 45%
Sunnyvale, CA: #6,613 of 14,302 inventorsTop 50%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Darrell R. Parham has been granted 3 US patents while listed as an inventor at Oracle. The first was granted in 1990 and the most recent in September 1998. Darrell R. Parham ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Darrell R. Parham in Sunnyvale, CA, US.

Patents per Year

Patents granted per year, 1990 to 1998Bar chart with a peak of 1 patents in 1990.peak 11990: 1 patents19901997: 1 patents19971998: 1 patents1998

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5805860 Methods, data structures and apparatus for traversing a hierarchical netlist 1998-09-08 $19,040,000
5696942 Cycle-based event-driven simulator for hardware designs Samir Palnitkar 1997-12-09 $27,796,000
4924430 Static timing analysis of semiconductor digital circuits John J. Zasio, Kenneth Chan Choy 1990-05-08 $1,957,000