John A. Hendershot

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Shawnee, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Two-stage vacuum monitoring and leak detection system for liquid pr...
- Patent number 5,117,677
- Issue date Jun 2, 1992
- J.A.A.M. Revocable Trust
- John A. Hendershot
- G01 - MEASURING TESTING
Information Patent Grant
Double bladder fluid containment system
- Patent number 5,072,623
- Issue date Dec 17, 1991
- World Enviro Systems, Inc.
- John A. Hendershot
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Fluid storage tank system
- Patent number 4,796,676
- Issue date Jan 10, 1989
- John A. Hendershot
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL