Richard Hatfield Jr.

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Pasadena, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for polymeric MDA, recycle of finished polymeric MDA
- Patent number 4,792,624
- Issue date Dec 20, 1988
- The Dow Chemical Company
- Richard Hatfield
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for polyisocyanates
- Patent number 4,465,639
- Issue date Aug 14, 1984
- The Upjohn Company
- Richard Hatfield
- C07 - ORGANIC CHEMISTRY