Vallarino; Angelo
Patent Applications and Registrations
Patent applications and USPTO patent grants for Vallarino; Angelo.The latest application filed is for "process for preparing bisphenol fluorene compounds".
- Vallarino; Angelo - Spotorno IT
- Vallarino; Angelo - Spontorno/Savona IT
- Vallarino; Angelo - Ferrania IT
- Vallarino; Angelo - Savona IT
| Patent | Date |
|---|---|
| Process for preparing bisphenol fluorene compounds Grant 5,248,838 - Massirio , et al. September 28, 1 | 1993-09-28 |
| 3-aminoallylidenemalononitrile UV-absorbing compounds and photographic elements containing them Grant 4,946,768 - Vallarino August 7, 1 | 1990-08-07 |
| Process for providing a matt surface on a photographic material and photographic material provided with such matt surface Grant 4,447,525 - Vallarino , et al. May 8, 1 | 1984-05-08 |
| Photographic material having a removable antihalo layer Grant 4,262,088 - Vallarino , et al. April 14, 1 | 1981-04-14 |
| Silver halide photographic emulsions with improved physical characteristics Grant 3,907,573 - Franco , et al. September 23, 1 | 1975-09-23 |
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