Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6242595 | Process for the recovery of cellulose carbamate | — | 2001-06-05 |
| 6234778 | Device for spinning of solutions of cellulose carbamate | Marco Belch, Juergen Wack | 2001-05-22 |
| 5968433 | Process for spinning of solutions of cellulose carbamate | Marco Belch, Juergen Wack | 1999-10-19 |
| 5906926 | Method for modified manufacture of cellulose carbamate | Henryk Struszczyk, Wlodzimierz Mikolajczyk, Pawel Starostka, Alojzy Urbanowski | 1999-05-25 |
| 5831076 | Production of cellulose carbamate with improved solubility properties | — | 1998-11-03 |
| 5378827 | Process for the production of cellulose carbamate | Adolf Arnold, Sabine Butzke | 1995-01-03 |
| 4430163 | Process for the continuous separation of slightly volatile components from a crude phthalic acid anhydride | Manfred Albers, Herbert Krimphove | 1984-02-07 |
| 4302434 | Process for producing hydrogen and sulphur from hydrogen sulphide | Lars Hellmer, Rainer Lell, Ghazi R. Al-Muddarris, Reinhard Pachaly, Adolf Stauffer +1 more | 1981-11-24 |
| 4285870 | Process for continuously separating phthalic anhydride from the reaction gases of the catalytic oxidation of o-xylene and/or naphthalene | Anton Klopfer, Lothar Sterck | 1981-08-25 |
| 4285871 | Process for continuously separating phthalic anhydride from the reaction gases of the catalytic oxidation of o-xylene and/or naphthalene | Anton Klopfer, Lothar Sterck | 1981-08-25 |
| 4269776 | Jet pump exhaust recycle in production of phthalic anhydride | Herbert Krimphove | 1981-05-26 |
| 4263211 | Process for the recovery of maleic anhydride from gases containing maleic anhydride | Anton Klopfer, Herbert Krimphove, Lothar Sterck | 1981-04-21 |