Melvin D. Herd

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Bartlesville, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Synthesis of bis(haloarylsulfonyl) aromatics
- Patent number 5,276,196
- Issue date Jan 4, 1994
- Phillips Petroleum Company
- Albert G. Holba
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Production of phenylene sulfide-arylene sulfide/sulfone block copol...
- Patent number 5,147,719
- Issue date Sep 15, 1992
- Phillips Petroleum Company
- Melvin D. Herd
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Aromatic sulfide/sulfone polymer production
- Patent number 5,134,224
- Issue date Jul 28, 1992
- Phillips Petroleum Company
- Afif M. Nesheiwat
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Purification of halogenated aromatic sulfones or ketones
- Patent number 4,990,678
- Issue date Feb 5, 1991
- Phillips Petroleum Company
- Melvin D. Herd
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Water soluble lubricating additives
- Patent number 4,729,839
- Issue date Mar 8, 1988
- Phillips Petroleum Company
- Alexander Schuettenberg
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...