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

David Rickel — 3 Patents

SYSynplicity: 2 patents #12 of 31Top 40%
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
David Rickel has been granted 3 US patents while listed as an inventor at Synplicity. The first was granted in 1998 and the most recent in August 2007. David Rickel ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list David Rickel in Sunnyvale, CA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7263673 Method and apparatus for automated synthesis and optimization of datapaths Kenneth S. McElvain 2007-08-28 $1,090,000
6691286 Methods and apparatuses for checking equivalence of circuits Kenneth S. McElvain 2004-02-10 $3,060,000
5854924 Static debugging tool and method James B. McBeath 1998-12-29