Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DJ

David L. Johannsen

VSViewlogic Systems: 2 patents #1 of 7Top 15%
SYSynopsys: 1 patents #1,143 of 2,302Top 50%
San Gabriel, CA: #98 of 297 inventorsTop 35%
California: #149,087 of 386,348 inventorsTop 40%
Overall (All Time): #1,633,929 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5974437 Fast array multiplier 1999-10-26
5910898 Circuit design methods and tools 1999-06-08
5841674 Circuit design methods and tools 1998-11-24