John E. Hrivnak

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Clinton, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Utilization of polyester in place of lead for use as a sheathing ma...
- Patent number 4,898,703
- Issue date Feb 6, 1990
- The Goodyear Tire & Rubber Company
- Hoyt M. Wells
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Wire coating process
- Patent number 4,588,546
- Issue date May 13, 1986
- The Goodyear Tire & Rubber Company
- Joseph N. Feil
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Heat setting a thermoformed PET article utilizing a male plug as a...
- Patent number 4,388,356
- Issue date Jun 14, 1983
- The Goodyear Tire & Rubber Company
- John E. Hrivnak
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL