U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

"I think there is a world market for maybe five computers."

Thomas Watson, chairman of IBM ; 1943

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.

Class 431/141 - One way drive means between cover and abrasive wheel

Subclass of Class 431 - Combustion
Definition: Apparatus wherein the igniter includes an abrasive wheel
No. of patents: 0