Hans E. Heyn

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North Barrington, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Breathable extruded polymer films
- Patent number 6,106,956
- Issue date Aug 22, 2000
- Exxon Chemical Patents, Inc.
- Hans E. Heyn
- B32 - LAYERED PRODUCTS
Information Patent Grant
Garment with foam cushion elastic closure
- Patent number 4,978,570
- Issue date Dec 18, 1990
- Exxon Chemical Patents Inc.
- Hans E. Heyn
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE