Randolph A. McDonald

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Berea, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Phosphorous amine lubricant additives
- Patent number 5,348,670
- Issue date Sep 20, 1994
- The Elco Corporation
- Randolph A. McDonald
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Phosphorous amine lubricant additives
- Patent number 5,194,166
- Issue date Mar 16, 1993
- The Elco Corporation
- Gerald D. Burt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Phosphorous amine lubricant additives
- Patent number 5,130,036
- Issue date Jul 14, 1992
- The Elco Corporation
- Gerald D. Burt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Phosphite amine lubricant additives
- Patent number 4,965,002
- Issue date Oct 23, 1990
- Elco Corporation
- William T. Brannen
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...