Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D372791 | Pet food supplement | Paul Berendsen, Hans-Kervin Bruins | 1996-08-20 |
| 4652585 | N-substituted diaminopropane/glutamic acid reaction products | Herbert Fischer, Rudolf Lehmann, Karlheinz Disch, Hans-Theo Leinen | 1987-03-24 |
| 4474807 | 2-(3-Iodo-2-propynyloxy)-ethyl carbamates, the preparation thereof, and their use as antimicrobial agents | Rudolf Lehmann | 1984-10-02 |
| 4298568 | Method and composition for inhibiting corrosion of nonferrous metals in contact with water | Volker Wehle, Andreas Syldatk, Gabriele Rogall, Jurgen Reiffert, Jens Conrad | 1981-11-03 |