Hirt, Jr.; Robert P.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hirt, Jr.; Robert P..The latest application filed is for "multilayer structure having at least one polycarbonate layer".
- Hirt, Jr.; Robert P. - Lenox MA
| Patent | Date |
|---|---|
| Multilayer structure having at least one polycarbonate layer Grant 4,734,331 - Giles, Jr. , et al. * March 29, 1 | 1988-03-29 |
| Polycarbonate compositions Grant 4,657,972 - Giles, Jr. , et al. April 14, 1 | 1987-04-14 |
| Multilayer polycarbonate structures Grant 4,608,311 - Giles, Jr. , et al. August 26, 1 | 1986-08-26 |
| Polycarbonate composition Grant 4,579,910 - Giles, Jr , et al. April 1, 1 | 1986-04-01 |
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