Gregory P. Sturtz

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Worthington, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Composite core assembly for metal casting
- Patent number 4,922,991
- Issue date May 8, 1990
- Ashland Oil, Inc.
- Michael A. Pitcher
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Process for recovery of amine from spent acid stripping liquor
- Patent number 4,543,163
- Issue date Sep 24, 1985
- Ashland Oil, Inc.
- David M. Stamerjohn
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for recovery of amine from spent acid stripping liquor
- Patent number 4,472,246
- Issue date Sep 18, 1984
- Ashland Oil, Inc.
- David M. Stamerjohn
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Urethane binder compositions for no-bake and cold box foundry appli...
- Patent number 4,293,480
- Issue date Oct 6, 1981
- Ashland Oil, Inc.
- Ralph D. Martin
- B22 - CASTING POWDER METALLURGY