Issued Patents All Time
Showing 51–75 of 98 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5760098 | Process for producing low-emission polyurethane moldings and composite bodies and their use | Ulrich Liman | 1998-06-02 |
| 5750679 | Process for obtaining pharmacologically active compounds from complex mixtures of substances | Heinz Engelhardt, Stefan Mullner | 1998-05-12 |
| 5587117 | Process for insulating pipes using polyurethane rigid foams by the rotational casting process | Norbert Eisen, Lutz-Peter Godthardt | 1996-12-24 |
| 5504179 | Process for the manufacture of flexible molded parts | Hans-Joachim Meiners, Eduard Mayer, Karl-Heinz Dorner | 1996-04-02 |
| 5464880 | Process for the CFC-free production of cellular polyurethane molded parts | Hans Weber, Erhard Michels, Christian Weber, Klaus Brecht | 1995-11-07 |
| 5459171 | Core discoloration preventing agents in the production of isocyanate-based foams | Sven Meyer-Ahrens, Gundolf Jacobs | 1995-10-17 |
| 5426124 | Process for the production of moldings of polyurethane foams | Alfred Neuhaus, Majid Daneshvar | 1995-06-20 |
| 5395888 | Thermoplastically processible poly-vinylarene/polyurethane block copolymers | Joachim Franke, Kurt P. Meurer, Josef Witte | 1995-03-07 |
| 5321350 | Fundamental frequency and period detector | — | 1994-06-14 |
| 5318396 | Pallet carrier for machine tools | Werner Babel | 1994-06-07 |
| 5242977 | Poly-.alpha.-olefin/polyurethane block copolymers, processes for their production and their use | Joachim Franke, Kurt P. Meurer, Josef Witte | 1993-09-07 |
| 5158987 | Process for the preparation of highly elastic polyurethane flexible foams and their use as upholstery material | Hans Hettel | 1992-10-27 |
| 5104905 | Process for the preparation of polyurethane foams | Hans Hettel, Gundolf Jacobs | 1992-04-14 |
| 5104906 | Process for the preparation of polyurethane foams | Hans Hettel, Gundolf Jacobs | 1992-04-14 |
| 5023280 | Process for the production of polyurethane foams | Hans Hettel | 1991-06-11 |
| 5017623 | Process for the preparation of polyurethane foams | Hans Hettel, Andreas Ruckes | 1991-05-21 |
| 4977194 | Process for the preparation of polyurethane foams | Hans Hettel | 1990-12-11 |
| 4970243 | Process for the production of flexible slabstock polyurethane foams | Gundolf Jacobs, Hans-Walter Illger, Hans-Joachim Kogelnik, Klaus-Dieter Wolf | 1990-11-13 |
| 4874797 | Oligourea polyols, polyether polyols produced from them and the use of these polyols in the isocyanate polyaddition process | Claus-Dieter Sommerfeld, Hans-Ulrich Weber | 1989-10-17 |
| 4797430 | Amine-modified polyurethane (urea) foams and a process for their production | Hans-Joachim Kogelnik | 1989-01-10 |
| 4775558 | Polyurethanes prepared or combined with another material and a process for their manufacture | Geza Avar | 1988-10-04 |
| 4766172 | Mold release composition, mixtures containing this mold release composition, a process for the production of molded articles and the molded articles obtained by this process | Christian Weber | 1988-08-23 |
| 4761307 | Process for the production of optionally foamed polyurethanes which are combined or fabricated with another material | Hans-Albrecht Freitag, Geza Avar | 1988-08-02 |
| 4758601 | Process for the production of polysiloxane ionomers, polysiloxane ionomers and their use for the production of cellular polyurethane elastomers | Hans-Dieter Ruprecht, Paul Henrichs | 1988-07-19 |
| 4753966 | Mold release composition, mixtures containing this mold release composition, a process for the production of elastomeric molded products, and the molded products obtained by this process | Christian Weber | 1988-06-28 |