Roy I. Yamamoto

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Wappingers Falls, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
4-Vinylpyridine polymethacrylate containing lube oil compositions
- Patent number 4,081,385
- Issue date Mar 28, 1978
- Texaco Inc.
- Roy I. Yamamoto
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Polymethacrylate additives and lubricating compositions thereof
- Patent number 4,036,767
- Issue date Jul 19, 1977
- Texaco Inc.
- Roy I. Yamamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymethacrylate and lube composition thereof
- Patent number 4,036,768
- Issue date Jul 19, 1977
- Texaco Inc.
- Wheeler C. Crawford
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymethacrylate additives and lube compositions thereof
- Patent number 4,036,766
- Issue date Jul 19, 1977
- Texaco Inc.
- Roy I. Yamamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...