TF

Terry V. Friesen

Chevron: 1 patents #2,615 of 4,788Top 55%
📍 Novato, CA: #240 of 607 inventorsTop 40%
🗺 California: #149,087 of 386,348 inventorsTop 40%
Overall (All Time): #1,624,640 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6294506 Lubricating oils having carbonated sulfurized metal alkyl phenates and carbonated metal alkyl aryl sulfonates James J. Harrison, William R. Ruhe, Jr. 2001-09-25
4771723 Sailboard assembly having a foot-operable steering assembly 1988-09-20
4679516 Sailboard assembly having a limited diplacement mast 1987-07-14