DC

DONALD FREDERICK COFFMAN

SR Sram: 1 patents #11 of 58Top 20%
📍 Colorado Springs, CO: #60 of 215 inventorsTop 30%
🗺 Colorado: #1,212 of 4,451 inventorsTop 30%
Overall (2025): #402,641 of 469,880Top 90%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12291297 Height adjustable seat posts for bicycles RAFER CHAMBERS, CHRISTOPHER ERIC GOLKIEWICZ, CHI HUI SU, ALEX KYLE MCGEE, CHARLES DUNLAP 2025-05-06