Ellendt; Gunther
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ellendt; Gunther.The latest application filed is for "process for purifying polyisocyanates and the polyisocyanates thus purified".
- Ellendt; Gunther - Krefeld DE
- Ellendt; Gunther - Krefeld all of DE
| Patent | Date |
|---|---|
| Process for purifying polyisocyanates and the polyisocyanates thus purified Grant 4,774,357 - Keggenhoff , et al. September 27, 1 | 1988-09-27 |
| Process for the production of polyisocyanates Grant 4,597,909 - Keggenhoff , et al. July 1, 1 | 1986-07-01 |
| Process for the purification of 4,4'-diisocyanatodiphenylmethane by plural distillations Grant 4,414,074 - Ellendt , et al. November 8, 1 | 1983-11-08 |
| Plaque for measuring the dose of reactive gases Grant 4,271,121 - Diller , et al. June 2, 1 | 1981-06-02 |
| Process for the preparation of polyamines Grant 4,094,907 - Knofel , et al. June 13, 1 | 1978-06-13 |
| Process for the preparation of aromatic polyamines Grant 4,093,658 - Knofel , et al. June 6, 1 | 1978-06-06 |
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