Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4931466 | Crystalline form and its preparation | Karl-Friedrich Jaeger, Karl-Heinz Koenig, Albrecht Mueller, Josef B. Pawliczek, Hans-Gert Recker +2 more | 1990-06-05 |
| 4855140 | O-(O-ethyl-S-alkylphosphoryl)-O-(carbamyl)-pyrocatechol derivatives | Wolfgang Seppelt, Linhard Sproesser, Peter Hofmeister, Christoph Kuenast | 1989-08-08 |
| 4788324 | Preparation of o-(1-methoxy-2-chloro)-ethoxyphenyl N-methylcarbamate | Gernot Reissenweber, Detlef Doehnert | 1988-11-29 |
| 4537986 | Preparation of pyrocatechol methylcarbamate | Gernot Reissenweber, Walter Ditter, Peter Jacobs | 1985-08-27 |
| 4348240 | Process for deactivating soluble metal cations in iron oxide pigments | Arvind S. Patil, Werner Fliege | 1982-09-07 |
| 4200501 | Silicate fouling control during dihydric alcohol distillation | Edward J. Panek, Werner O. Moll, Lee H. Bergman | 1980-04-29 |