Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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 |
| 7441557 | Barrel for paint-ball gun In a barrel for a paint-ball gun, the entrance to the bore has a chamfer. The chamfer has a smooth transition from the entrance to the bore; preferably in the form of a section of a circle or parabola. In another embodiment, the bore of the barrel has a similar smoo... | 10/28/2008 |
| 7302944 | Barrel and ball sizer for paint-ball gun A ball sizer for a paint-ball gun includes a bore having an entrance. In the preferred embodiment, the bore has a chamfer, which in turn has a smooth transition from the entrance to the bore of the sizer. The transition may define a section of a parabola, a section ... | 12/04/2007 |
