Steve Kropp

Follow

Person

Surrey, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Intercom/wireless door bell for multi-handset telephone system
- Patent number 7,738,917
- Issue date Jun 15, 2010
- VTech Telecommunications Limited
- Gordon Ryley
- G08 - SIGNALLING
Information Patent Grant
Apparatus for conducting a conference call between a wireless line...
- Patent number 6,937,854
- Issue date Aug 30, 2005
- VTech Telecommunications, Limited
- Holger Janssen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Sidetone level reduction circuit and method
- Patent number 5,852,774
- Issue date Dec 22, 1998
- Vtech Communications, Ltd.
- Stephen George Kropp
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Intercom/wireless door bell for multi-handset telephone system
- Publication number 20070042804
- Publication date Feb 22, 2007
- Gordon Ryley
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
User selectable sound enhancement feature
- Publication number 20040131206
- Publication date Jul 8, 2004
- James Cao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Apparatus for conducting a conference call between a wireless line...
- Publication number 20030157929
- Publication date Aug 21, 2003
- Holger Janssen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE