David E. Crotty

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Highland Park, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Non-peroxide trivalent chromium passivate composition and process
- Patent number 4,578,122
- Issue date Mar 25, 1986
- OMI International Corporation
- David E. Crotty
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Trivalent chromium passivate composition and process
- Patent number 4,384,902
- Issue date May 24, 1983
- Occidental Chemical Corporation
- David E. Crotty
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Trivalent chromium passivate process
- Patent number 4,367,099
- Issue date Jan 4, 1983
- Occidental Chemical Corporation
- Ronald J. Lash
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Stabilized trivalent chromium passivate composition and process
- Patent number 4,359,348
- Issue date Nov 16, 1982
- Occidental Chemical Corporation
- David E. Crotty
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...