Steven Johnston

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Marysville, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Breaker core
- Patent number D772312
- Issue date Nov 22, 2016
- ASK CHEMICALS L.P.
- Steven Johnston
- D15 - Machines not elsewhere specified
Information Patent Grant
Process for preparing a test casting and test casting prepared by t...
- Patent number 8,056,604
- Issue date Nov 15, 2011
- ASK CHEMICALS L.P.
- Flavia Cunha Duncan
- B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

Information Patent Application
CASTING SLEEVE WITH WILLIAMS CORE
- Publication number 20170050238
- Publication date Feb 23, 2017
- ASK CHEMICALS, L.P.
- Ronald Craig AUFDERHEIDE
- B22 - CASTING POWDER METALLURGY
Information Patent Application
PROCESS FOR PREPARING A TEST CASTING AND TEST CASTING PREPARED BY T...
- Publication number 20110056643
- Publication date Mar 10, 2011
- Flavia Cunha Duncan
- B22 - CASTING POWDER METALLURGY