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

Icon_funbox Quotables

"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"

David Sarnoff, American radio pioneer ; 1921

Newsletter  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.

 

Inventor: Walter Lauer


Address: Frankfurt-Hochst, DE
No. of patents: 1
Last patent issue date: 02/22/1994

NumberTitleIssue Date
5289538Circuit arrangement for signal and information conversion between analog junction lines and digital terminal devices in communications exchanges
A circuit arrangement converts signals and information between analog junction lines and digital terminal devices in communications exchanges. A decentralized control device is provided in order to process and pass on switching criteria and codes received... 		02/22/1994
 
Sign InRegister
Username  
Password   
forgot password?