John S. Ligas

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Palm Harbor, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Photochromic article having at least partially crossed polarized ph...
- Patent number 9,030,740
- Issue date May 12, 2015
- Transitions Optical, Inc.
- Rachel L. DeMeio
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Photochromic compositions of improved fatigue resistance
- Patent number 5,391,327
- Issue date Feb 21, 1995
- Transitions Optical, Inc.
- John S. Ligas
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Photochromic Article Having At Least Partially Crossed Polarized Ph...
- Publication number 20140078583
- Publication date Mar 20, 2014
- TRANSITIONS OPTICAL, INC.
- Rachel L. DeMeio
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...