John D. Knight

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Scarborough, ME, US

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Patents Grantslast 30 patents

Information Patent Grant
Material level monitoring and reporting
- Patent number 6,662,649
- Issue date Dec 16, 2003
- Simmons Sirvey Corporation
- John D. Knight
- G01 - MEASURING TESTING
Information Patent Grant
Underground storage tank monitoring system and method
- Patent number 6,374,187
- Issue date Apr 16, 2002
- Simmons Sirvey Corp.
- John D. Knight
- G01 - MEASURING TESTING
Information Patent Grant
Line leak detection
- Patent number 5,918,268
- Issue date Jun 29, 1999
- Intelligent Controls, Inc.
- Paul Lukas
- G01 - MEASURING TESTING
Information Patent Grant
Motor vehicle stability monitoring and alarm system and method
- Patent number 5,032,821
- Issue date Jul 16, 1991
- Edward J. Domanico
- B60 - VEHICLES IN GENERAL