VanGemert; Barry
Patent Applications and Registrations
Patent applications and USPTO patent grants for VanGemert; Barry.The latest application filed is for "photochromic spiro(indoline)naphthoxazine compounds".
- VanGemert; Barry - Murrysville PA
| Patent | Date |
|---|---|
| Photochromic spiro(indoline)naphthoxazine compounds Grant 5,405,958 - VanGemert April 11, 1 | 1995-04-11 |
| Photochromic naphthopyran compounds Grant 5,274,132 - VanGemert December 28, 1 | 1993-12-28 |
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