RO

Ralph F. Osterhout

TE Tekna: 7 patents #1 of 7Top 15%
📍 San Francisco, CA: #4 of 251 inventorsTop 2%
🗺 California: #40 of 10,592 inventorsTop 1%
Overall (1989): #995 of 140,708Top 1%
7
Patents 1989

Issued Patents 1989

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
D304154 Foldable knife 1989-10-24
4876632 Flashlight with battery life indicator module Paul L. Howard, Greta G. Light 1989-10-24
D302046 Spotlight 1989-07-04
D301752 Spotlight 1989-06-20
4821156 Flashlight with focusing beam assembly Steven G. Siefert 1989-04-11
D300112 Pocket knife with removable cap 1989-03-07
4794803 Decompression and air consumption computer Richard B. Kash, Gregory F. Cederlind, Greta L. Gleason 1989-01-03