Bizarre Patents
A small umbrella which may be removably attached to a beverage container in order to shade the beverage container from the direct rays of the sun.
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 |
| 4815087 | High speed stable light emitting semiconductor device with low threshold current A highly efficient light emitting semiconductor device which is stable at high speeds and has a low threshold current comprising a first semiconductor layer of a first conductive type; a second semiconductor layer of the second conductive type which is di... | 03/21/1989 |
