John D. Halm

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Lindenhurst, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Substrate smoothed by coating with gypsum-containing composition an...
- Patent number 6,740,395
- Issue date May 25, 2004
- United States Gypsum Company
- John D. Halm
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Patents Applicationslast 30 patents

Information Patent Application
Substrate smoothed by coating with gypsum-containing composition an...
- Publication number 20030134554
- Publication date Jul 17, 2003
- John D. Halm
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES