Joy M. Schaefer

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Park Ridge, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Ultraviolet blocking polysiloxane resin and process for making the...
- Patent number 5,371,138
- Issue date Dec 6, 1994
- Tru Vue, Inc.
- Joy M. Schaefer
- B32 - LAYERED PRODUCTS
Information Patent Grant
Surface treatment for aluminum and aluminum alloys
- Patent number 4,422,886
- Issue date Dec 27, 1983
- Chemical Systems, Inc.
- Narayan Das
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Surface treatment for aluminum and aluminum alloys
- Patent number 4,391,652
- Issue date Jul 5, 1983
- Chemical Systems, Inc.
- Narayan Das
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...