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USPTO Patent Rankings Data through Dec 31, 2025
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Roger D. Stephens — 3 Patents

UNUnknown: 2 patents #12,644 of 83,584Top 20%
LELear: 1 patents #905 of 1,996Top 50%
Redwood City, CA: #2,292 of 5,061 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
Roger D. Stephens has been granted 3 US patents while listed as an inventor at Unknown. The first was granted in 2000 and the most recent in December 2021. Roger D. Stephens ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Roger D. Stephens in Redwood City, CA, US.

Patents per Year

Patents granted per year, 2000 to 2021Bar chart with a peak of 1 patents in 2000.peak 12000: 1 patents20002001: 1 patents20012021: 1 patents2021

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11192479 Seat assembly having a telescoping tube joint and method of manufacture Bozdar Brkovic, Daniel J. Peppernick, Dharmesh Kansara, Luke Boeve 2021-12-07 $74,475,000
6283132 Anesthesia spirometer absorber circuit cleaner and method Erwin Schmidmeister 2001-09-04
6039280 Monitor cable caddy Erwin Schmidmeister 2000-03-21

Frequent Collaborators

Erwin Schmidmeister2 shared
Daniel J. Peppernick1 shared
Dharmesh Kansara1 shared
Luke Boeve1 shared
Bozdar Brkovic1 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