In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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 |
| 6447739 | Method for producing lithium transition metallates The invention relates to a method for producing lithium transition metalates of the general formula (I): Lix (M1y M21-y)n Onz, where M1 represents lithium, cobalt or m... | 09/10/2002 |
| 5723535 | Pastes for the coating of substrates, methods for manufacturing them and their use The present invention relates to pastes for the coating of substrates, consisting of powdery materials present in liquid dispersion from the group of the metals, metal compounds and/or metal alloys and/or boron and/or carbon, methods for manufacturing the... | 03/03/1998 |
| 5718844 | Cobalt/cobalt oxide powder Cobalt/cobalt oxide powder having the composition Cox (CoO)1-x, where x is from 0.02 to 5, and a process for its production and use in nickel hydroxide electrodes for secondary batteries to enhance capacity.... | 02/17/1998 |
| 5482530 | Cobalt metal powder and composite sintered articles produced therefrom The invention relates to cobalt metal powders as a binder metal for the production of diamond and/or hard-metal tools and/or wear-resistant coatings and to composite sintered articles produced therefrom.... | 01/09/1996 |