David W. Grimes

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Oxford, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for attaching power line communications to cus...
- Patent number 7,170,395
- Issue date Jan 30, 2007
- Telkonet Communications, Inc.
- Ralph E. Crenshaw
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for attaching power line communications to cus...
- Patent number 7,091,831
- Issue date Aug 15, 2006
- Telkonet Communications, Inc.
- Ralph E. Crenshaw
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for attaching power line communications to cus...
- Patent number 6,975,212
- Issue date Dec 13, 2005
- Telkonet Communications, Inc.
- Ralph E. Crenshaw
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for attaching power line communications to cus...
- Publication number 20050253690
- Publication date Nov 17, 2005
- Telkonet Communications, Inc.
- Ralph E. Crenshaw
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for attaching power line communications to cus...
- Publication number 20050248441
- Publication date Nov 10, 2005
- Telkonet Communications, Inc.
- Ralph E. Crenshaw
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for attaching power line communications to cus...
- Publication number 20050046550
- Publication date Mar 3, 2005
- Ralph E. Crenshaw
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for attaching power line communications to cus...
- Publication number 20040196144
- Publication date Oct 7, 2004
- Telkonet, Inc.
- Ralph E. Crenshaw
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for attaching power line communications to cus...
- Publication number 20030071719
- Publication date Apr 17, 2003
- Ralph E. Crenshaw
- H04 - ELECTRIC COMMUNICATION TECHNIQUE