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

"We are probably nearing the limit of all we can know about astronomy."

Simon Newcomb, astronomer ; 1888

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 218/96 - With oil flow feature

Subclass of Class 218 - High-voltage switches with arc preventing or extinguishing devices
Definition: Subject matter including specific structure details of flow
No. of patents: 0