Joffee; Irving B.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Joffee; Irving B..The latest application filed is for "polyamide membrane with controlled surface properties".
- Joffee; Irving B. - Huntington NY
| Patent | Date |
|---|---|
| Polyamide membrane with controlled surface properties Grant 5,154,829 - Degen , et al. * October 13, 1 | 1992-10-13 |
| Method of making polyvinylidene difluoride structure Grant 4,855,163 - Joffee , et al. August 8, 1 | 1989-08-08 |
| Polyvinylidene difluoride structure Grant 4,774,132 - Joffee , et al. September 27, 1 | 1988-09-27 |
| Charge-modified microfiber filter sheets Grant 4,734,208 - Pall , et al. March 29, 1 | 1988-03-29 |
| Charge modified polyamide membrane Grant 4,702,840 - Degen , et al. October 27, 1 | 1987-10-27 |
| Charge-modified microfiber filter sheets Grant 4,523,995 - Pall , et al. June 18, 1 | 1985-06-18 |
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