Robert J. Piasecki

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Charlotte, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Gypsum set accelerator and method of making the same
- Patent number 6,221,151
- Issue date Apr 24, 2001
- National Gypsum Company
- Frank H. Campbell
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method and apparatus for continuously calcining gypsum
- Patent number 6,083,465
- Issue date Jul 4, 2000
- National Gypsum Properties, LLC
- Robert J. Piasecki
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES