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Donald L. Roberts
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Escondido, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Graffiti detection system and method of using the same
Patent number
7,064,664
Issue date
Jun 20, 2006
Traptec Corporation
George H. Lerg
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Sonic detection system and method of using the same
Patent number
6,961,002
Issue date
Nov 1, 2005
Traptec Corporation
George H. Lerg
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Magnetic therapeutic device and method of use
Patent number
6,632,168
Issue date
Oct 14, 2003
Advanced Recording Technologies
Donald L. Roberts
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Graffiti detection system and method of using the same
Patent number
6,600,417
Issue date
Jul 29, 2003
Traptec Corporation
George H. Lerg
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Graffiti detection system and method of using the same
Patent number
6,288,643
Issue date
Sep 11, 2001
Traptec Corporation
George H. Lerg
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Vehicle tire leak detection system and method of using the same
Patent number
6,281,787
Issue date
Aug 28, 2001
Traptec Corporation
George H. Lerg
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Firearm shot detection system and method of using the same
Patent number
6,281,792
Issue date
Aug 28, 2001
George H. Lerg
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Nucleation separator for flue gas
Patent number
4,735,636
Issue date
Apr 5, 1988
Energy Conversion Corporation
Donald L. Roberts
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
Graffiti detection system and method of using the same
Publication number
20040075561
Publication date
Apr 22, 2004
Traptec Corporation
George H. Lerg
B60 - VEHICLES IN GENERAL
Information
Patent Application
Sonic detection system and method of using the same
Publication number
20030214405
Publication date
Nov 20, 2003
Traptec Corporation
George H. Lerg
B60 - VEHICLES IN GENERAL
Information
Patent Application
Magnetic therapeutic device and method of use
Publication number
20020198433
Publication date
Dec 26, 2002
Advanced Recording Technologies, Inc.
Donald L. Roberts
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Graffiti detection system and method of using the same
Publication number
20020008619
Publication date
Jan 24, 2002
Traptec Corporation
George H. Lerg
B60 - VEHICLES IN GENERAL