Diffendaffer; Paul A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Diffendaffer; Paul A..The latest application filed is for "precious metal thin-film laminate (pmtl)".
- Diffendaffer; Paul A. - Santa Rosa CA
- Diffendaffer; Paul A. - Bassett VA
- Diffendaffer; Paul A. - LaCrescenta CA
| Patent | Date |
|---|---|
| Precious metal thin-film laminate (PMTL) App 20110039042 - Johansen; Laurie ; et al. | 2011-02-17 |
| Permeable solar control film Grant 5,902,634 - Maschwitz , et al. May 11, 1 | 1999-05-11 |
| Ultraviolet radiation and blue light blocking polarizing lens Grant 5,400,175 - Johansen , et al. * March 21, 1 | 1995-03-21 |
| Ultraviolet radiation and blue light blocking polarizing lens Grant 5,177,509 - Johansen , et al. January 5, 1 | 1993-01-05 |
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