Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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 |
| 6343557 | Combustion furnace with grate and rod feeder A combustion furnace for solid fuel, including combustable fuel, wherein the furnace is arranged with a grate (11) with openings (12) which are situated for supply of air or another gas mixture for combustion. A first and second rod feeder (1, 2) is provi... | 02/05/2002 |
| 6079064 | Foldable bed assembly A foldable bed assembly includes a mattress, a mediate supporter, a front frame having a first end pivotally connected to the mediate supporter, and a rear frame having a first end pivotally connected to the mediate support. A positioning plate has a firs... | 06/27/2000 |
| 5837413 | Electrophotographic toner, and developer The invention provides a magnetic toner for electrophotography in which an ultrafine particle form of titanium oxide (having a specific surface area of 80 to 120 m2 /g, a degree of hydrophobicity of 50 to 80% by weight, and an alumina content o... | 11/17/1998 |
| 5226375 | Boiler and other combustion chambers and a method for mix-combusting coal and rubber This invention relates to the combustion of metal-containing scrap rubber such as used tires in a combustion chamber equipped with a traveling-grate stoker without allowing binding of molten metal to the stoker for effective utilization of scrap rubber as... | 07/13/1993 |
| 4176599 | Device for intermittently driving printing rings in a printer The printer has a plurality of printing rings each rotatably supported by a swingable layer pivoted about a pivot axis so as to be swung in an arcuate path around the pivot axis while it is rotated by a driving source about its own axis so that the printi... | 12/04/1979 |
