Kenneth A. Roll

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Oberlin, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Information display board
- Patent number 6,922,155
- Issue date Jul 26, 2005
- Travel Boards, Inc.
- Garrett L. Evans
- G08 - SIGNALLING
Information Patent Grant
Discrete modulation ballast operation and method of use
- Patent number 6,753,657
- Issue date Jun 22, 2004
- CogniTek Management Systems
- Michael H. Gurin
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Materials test chamber with xenon lamp radiation
- Patent number 6,525,493
- Issue date Feb 25, 2003
- Q-Panel Lab Products
- Douglas M. Grossman
- G01 - MEASURING TESTING
Information Patent Grant
Materials test chamber with xenon lamp radiation
- Patent number 6,285,137
- Issue date Sep 4, 2001
- Q-Panel Lab Products Corp.
- Douglas M. Grossman
- G01 - MEASURING TESTING
Information Patent Grant
Security system for swimming pools and like bodies of water
- Patent number 5,195,060
- Issue date Mar 16, 1993
- Marcorp Inc.
- Kenneth A. Roll
- G08 - SIGNALLING

Patents Applicationslast 30 patents

Information Patent Application
Discrete modulation ballast operation and method of use
- Publication number 20020079844
- Publication date Jun 27, 2002
- Michael H. Gurin
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Materials test chamber with xenon lamp radiation
- Publication number 20010038269
- Publication date Nov 8, 2001
- Douglas M. Grossman
- G01 - MEASURING TESTING