Fennhoff; Gerhard
Patent Applications and Registrations
Patent applications and USPTO patent grants for Fennhoff; Gerhard.The latest application filed is for "method for conditioning ion exchangers".
- Fennhoff; Gerhard - Willich DE
- Fennhoff; Gerhard - Antwerp BE
| Patent | Date |
|---|---|
| Method for conditioning ion exchangers Grant 6,723,881 - Bodiger , et al. April 20, 2 | 2004-04-20 |
| Bisphenol production Grant 6,723,885 - Heydenreich , et al. April 20, 2 | 2004-04-20 |
| Cocatalysts for the synthesis of bisphenols Grant 5,914,431 - Fennhoff June 22, 1 | 1999-06-22 |
| Bisphenol synthesis on modified ion-exchange resins using specially purified carbonyl compounds Grant 5,780,690 - Berg , et al. July 14, 1 | 1998-07-14 |
| Process for the production of bisphenols with the use of new cocatalysts Grant 5,698,600 - Wulff , et al. December 16, 1 | 1997-12-16 |
| Radiation-resistant polycarbonates Grant 5,612,398 - Fennhoff , et al. March 18, 1 | 1997-03-18 |
| Process for the production of aliphatic-aromatic polycarbonates Grant 5,408,027 - Haese , et al. April 18, 1 | 1995-04-18 |
| Stabilized, flame resistant polycarbonate moulding compounds Grant 5,399,600 - Buysch , et al. March 21, 1 | 1995-03-21 |
| Process for the production of bisphenols Grant 5,302,774 - Berg , et al. April 12, 1 | 1994-04-12 |
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