HS

Hans Schlapfer

CI Ciba-Geigy: 2 patents #1,054 of 2,867Top 40%
CX Cx: 1 patents #2 of 14Top 15%
📍 Seattle, WA: #8,251 of 21,776 inventorsTop 40%
🗺 Washington: #27,877 of 76,902 inventorsTop 40%
Overall (All Time): #1,643,660 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5632936 Method and apparatus for molding ophthalmic lenses using vacuum injection Kai C. Su, Jack C. White 1997-05-27
4823162 Method and apparatus for marking photographic orders John O. Renn, Kenneth G. Hammerquist, Charalambos Caraconstantis 1989-04-18
4783066 Photographic film stacking device Paul D. Barker, David L. Davis, Allen E. Fleckenstein 1988-11-08