John E. Hrivnak

Follow

Person

Clinton, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Process for manufacturing polyethylene terephthalate industrial yarn
- Patent number 5,102,603
- Issue date Apr 7, 1992
- The Goodyear Tire & Rubber Company
- Richard M. Oblath
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Process for manufacturing industrial yarn
- Patent number 5,049,339
- Issue date Sep 17, 1991
- The Goodyear Tire & Rubber Company
- John E. Hrivnak
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING