The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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.
| Application No. | Application Title | Issue Date |
| 20110014509 | RECHARGEABLE BATTERY A rechargeable battery. A non-coating portion of an electrode plate, a coating portion of another electrode plate corresponding to the non-coating portion, and a separator are separated from each other through an insulating member to prevent a burr generated at the non-... | 01/20/2011 |
| 20100316892 | BATTERY PACK A battery pack is disclosed. The battery pack includes a bare cell comprising a cap plate and an electrode terminal positioned on a center region of the cap plate; an insulating layer positioned over the cap plate, wherein the insulating layer comprises a first terminal... | 12/16/2010 |