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Marc Herwin De Groot — 3 Patents

VIVirtual I/O: 1 patents #3 of 10Top 30%
WBWavin B.V.: 1 patents #37 of 114Top 35%
San Francisco, CA: #11,643 of 26,999 inventorsTop 45%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Marc Herwin De Groot has been granted 3 US patents while listed as an inventor at Virtual I/O. The first was granted in 1996 and the most recent in July 2023. Marc Herwin De Groot ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Marc Herwin De Groot in San Francisco, CA, US.

Patents per Year

Patents granted per year, 1996 to 2023Bar chart with a peak of 1 patents in 1996.peak 11996: 1 patents19962002: 1 patents20022023: 1 patents2023

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11703162 Press fitting device Bastiaan Vos, Gerrit Jan Nijman, Ruurd Johan Berend Van Leeuwen, Ronald Ekkel 2023-07-18
6421047 Multi-user virtual reality system for simulating a three-dimensional environment — 2002-07-16
5526022 Sourceless orientation sensor Michael Donahue, Mark Pesce, Michael Alan Perry, Donald E. Drumm 1996-06-11

Frequent Collaborators

Michael Donahue1 shared
Mark Pesce1 shared
Gerrit Jan Nijman1 shared
Ruurd Johan Berend Van Leeuwen1 shared
Michael Alan Perry1 shared
Ronald Ekkel1 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