Did You Know...
...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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 |
| 7172475 | Naval propulsion system fed by refuse derived fuel and method thereof Naval propulsion system (1), comprising a heating chamber (6), apt to be fired with refuse derived fuel, an extraction unit (3, 5) apt to extract the fuel in the form of bales housed in containers to feed it towards the heating chamber, and a un... | 02/06/2007 |
