Edward H. Chang

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Burnsville, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Low temperature metal cleaning composition
- Patent number 4,048,121
- Issue date Sep 13, 1977
- Fremont Industries, Inc.
- Edward H. Chang
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Wood finish remover
- Patent number 3,979,219
- Issue date Sep 7, 1976
- Fremont Industries, Inc.
- Edward H. Chang
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Cleaning and polishing compound for barrel and vibratory finishing...
- Patent number 3,932,243
- Issue date Jan 13, 1976
- Fremont Industries, Inc.
- Edward H. Chang
- C07 - ORGANIC CHEMISTRY