Famous Patents
British merchant Peter Durand invented the tin can in 1810.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5626641 | Method of manufacturing a glass blank used for optical glass elements In manufacturing a glass material used for a re-heat press method of manufacturing high-precision optical glass components including a lens, prism or the like, a glass material can be manufactured which has no defect inside of or on the surface of the gla... | 05/06/1997 |
| 4808556 | Fluorophosphate optical glass A fluorophosphate optical glass with a low refractive index and low dispersion is provided in stable manner, which has a refractive index nd of 1.42 to 1.47 and an Abbe number .nu.d of 90 to 97 and comprises 3 to 8 mole % of P2 O5, 0... | 02/28/1989 |
