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

RAFER CHAMBERS — 7 Patents

SRSram: 7 patents #24 of 220Top 15%
Colorado Springs, CO: #449 of 2,971 inventorsTop 20%
Colorado: #6,721 of 40,980 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
RAFER CHAMBERS has been granted 7 US patents while listed as an inventor at Sram. The first was granted in 2020 and the most recent in May 2025. RAFER CHAMBERS ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list RAFER CHAMBERS in Colorado Springs, CO, US.

Patents per Year

Patents granted per year, 2020 to 2025Bar chart with a peak of 2 patents in 2020.peak 22020: 2 patents20202023: 1 patents20232024: 2 patents20242025: 2 patents2025

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
12291297 Height adjustable seat posts for bicycles CHRISTOPHER ERIC GOLKIEWICZ, CHI HUI SU, DONALD FREDERICK COFFMAN, ALEX KYLE MCGEE, CHARLES DUNLAP 2025-05-06
12286180 Pneumatic only height adjust seat post assembly CHARLES DUNLAP 2025-04-29
12179870 Seat post assembly with an adjustable stroke CHARLES DUNLAP 2024-12-31
11987312 Seat post assembly Christopher Shipman, Brian Jordan, Kevin Wesling, Jesse Jakomait 2024-05-21
11661129 Pneumatic only height adjust seat post assembly CHARLES DUNLAP 2023-05-30
10611433 Hydraulic bicycle component control device 2020-04-07
10549803 Seat post assembly Christopher Shipman, Brian Jordan, Kevin Wesling, Jesse Jakomait 2020-02-04