Thomas Francis

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Fraser, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Radon treatment system and method
- Patent number 5,083,500
- Issue date Jan 28, 1992
- Superior Environmental Services, Inc.
- Thomas Francis
- B08 - CLEANING
Information Patent Grant
Clean-out pipe receptacle
- Patent number 5,080,004
- Issue date Jan 14, 1992
- Superior Environmental Service, Inc.
- Thomas Francis
- B08 - CLEANING
Information Patent Grant
Foundation drain cleaning apparatus and method
- Patent number 4,981,150
- Issue date Jan 1, 1991
- Franman, Inc.
- Thomas Francis
- B08 - CLEANING
Information Patent Grant
Foundation drain cleaning apparatus and method
- Patent number 4,848,380
- Issue date Jul 18, 1989
- Franman, Inc.
- Thomas Francis
- B08 - CLEANING