Gerald E. Umberson

📍 Goleta, CA: #459 of 1,303 inventorsTop 40%

🗺 California: #149,087 of 386,348 inventorsTop 40%

Overall (All Time): #1,652,526 of 4,157,543Top 40%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
5465511	Trenching machine	—	1995-11-14
4937957	Torsional limiting device for a vehicular ditching apparatus	—	1990-07-03
4720929	Trenching device	—	1988-01-26