William H. McDonald

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Cranberry Township, Butler County, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Photochromic article
- Patent number 7,465,414
- Issue date Dec 16, 2008
- Transitions Optical, Inc.
- Carol L. Knox
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Impact resistant polyureaurethane and polyureaurethane prepolymer h...
- Patent number 7,144,969
- Issue date Dec 5, 2006
- PPG Industries Ohio, Inc.
- William H. McDonald
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...