John H. Litchfield

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Worthington, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Degradation control of environmentally degradable disposable materials
- Patent number 6,740,731
- Issue date May 25, 2004
- Cargill Dow Polymers LLC
- Donald M. Bigg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Degradation control of environmentally degradable disposable materials
- Patent number 6,323,307
- Issue date Nov 27, 2001
- Cargill Dow Polymers, LLC
- Donald M. Bigg
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Aerobic submerged fermentation of sporulating, ectomycorrhizal fungi
- Patent number 4,327,181
- Issue date Apr 27, 1982
- Battelle Development Corporation
- John H. Litchfield
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Anticaries confectioneries and oral health products
- Patent number 4,053,638
- Issue date Oct 11, 1977
- William Wrigley Jr. Company
- John H. Litchfield
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Anticaries confectionaries and oral health products
- Patent number 4,048,299
- Issue date Sep 13, 1977
- William Wrigley, Jr. Co.
- John H. Litchfield
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Degradation control of environmentally degradable disposable materials
- Publication number 20020123546
- Publication date Sep 5, 2002
- Ecopol, LLC
- Donald M. Bigg
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL