Peter I. Chang

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Terre Haute, IN, US

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Patents Grantslast 30 patents

Information Patent Grant
Vacuum assisted application of thin vapor permeable, liquid imperme...
- Patent number 5,762,643
- Issue date Jun 9, 1998
- Tredegar Industries, Inc.
- Carl D. Ray
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Alkaline and water soluble articles and method of making same
- Patent number 5,665,824
- Issue date Sep 9, 1997
- Tredegar Industries, Inc.
- Peter I. Chang
- B32 - LAYERED PRODUCTS
Information Patent Grant
Compostable thermoplastic compositions
- Patent number 5,258,422
- Issue date Nov 2, 1993
- Tredegar Industries, Inc.
- Peter I. Chang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Biodegradable, liquid impervious films
- Patent number 5,254,607
- Issue date Oct 19, 1993
- Tredegar Industries, Inc.
- Robert K. McBride
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Disposable absorbent articles with biodegradable backsheets
- Patent number 5,217,803
- Issue date Jun 8, 1993
- Tredegar Industries, Inc.
- Robert K. McBride
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL