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David W. Kahn — 3 Patents

Genentech: 3 patents #890 of 2,392Top 40%
Foster City, CA: #958 of 2,058 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 W. Kahn has been granted 3 US patents while listed as an inventor at Genentech. The first was granted in 2000 and the most recent in December 2014. David W. Kahn ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list David W. Kahn in Foster City, CA, US.

Patents per Year

Patents granted per year, 2000 to 2014Bar chart with a peak of 1 patents in 2000.peak 12000: 1 patents20002001: 1 patents20012014: 1 patents2014

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8906648 Recombinant production of vascular endothelial growth factor Michelle D. Butler, Jeffrey L. Cleland, Shelly Pizarro, Charles H. Schmelzer, Marjorie E. Winkler 2014-12-09
6313285 Purification of plasmid DNA Michelle D. Butler, Darien L. Cohen, Marjorie E. Winkler 2001-11-06 $181,972,000
6140128 Preparation of calcium phosphate transfectacons Darien L. Cohen, Marjorie E. Winkler 2000-10-31 $715,805,000

Frequent Collaborators

Marjorie E. Winkler3 shared
Darien L. Cohen2 shared
Michelle D. Butler2 shared
Jeffrey L. Cleland1 shared
Charles H. Schmelzer1 shared
Shelly Pizarro1 shared

Nearby-Ranked Inventors

Daniel Silion3
Hangfeng Li3
Mark Vander Wal3
Chad M. Goltzman3
Sathish Kumar Thanganathan3
Debbie Maloyd3
Ethan Alexander Garrett3
Paul Sabatka3
Sergii Bomko3