Famous Patents
The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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 |
| 7484295 | Method of mounting a metal sheet ring assembled and welded in a carrier hoop to conform the annular cooling tube of a piston of internal combustion engine A metal sheet ring (5) has a web (15) extending between two fins (10) and (11) projecting towards a carrier hoop (6), wherein free ends of the fins rest on and couple to respective annular seats (8) and (9) defined in... | 02/03/2009 |
