Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5074886 | Dyeing or printing of acid-treated glass fibers with anionic dye and cationic compound | Klaus Fussmann, Manfred Schnabel, Ulrich Schmidt, Manfred Herrmann, Othmar Frank | 1991-12-24 |
| 4652653 | Process for the preparation of .beta.-(benzothiazolylthio)- and .beta.-(benzimidazolylthio)-carboxylic acid derivatives | Marcus Baumann, Hans Greuter | 1987-03-24 |
| 4612378 | Process for the preparation of .beta.-(benzothiazolylthio)- and .beta.-(benzimidazolylthio-carboxylic acids | Hans Greuter | 1986-09-16 |
| 4480106 | Process for the preparation of asymmetrically substituted maleic anhydrides, and asymmetrically substituted maleic anhydrides | Werner Breitenstein, Marcus Baumann | 1984-10-30 |
| 4463142 | Photocrosslinkable polymers with side groups derived from indenone and the preparation and use of these polymers | Hans Zweifel, Joseph Berger | 1984-07-31 |
| 4411337 | Group control for elevators | Joris Schroder, Jiri Kiml, Miroslav Kostka, Walter Zimmermann | 1983-10-25 |
| 4399259 | Photocrosslinkable polymers with side groups derived from indenone and the preparation and use of these polymers | Hans Zweifel, Joseph Berger | 1983-08-16 |
| 4355705 | Group control for elevators | Joris Schroder, Jiri Kiml, Miroslav Kostka, Walter Zimmermann | 1982-10-26 |
| 4323701 | Process for the preparation of indenonecarboxylic acids | Hermann Rempfler, Hans Zweifel | 1982-04-06 |
| 4304919 | Process for the production of asymmetrical thioindigo compounds | Niklaus Buhler | 1981-12-08 |
| 4260544 | Halogenomethylene-indoxyls | Niklaus Buhler, Alfred Sallmann | 1981-04-07 |
| 4260545 | N-Substituted halogenomethyleneindoxyls | Niklaus Buhler, Alfred Sallmann | 1981-04-07 |
| 4185110 | Certain benzofuryl or benzothienyl-2-glyoxylic acid compounds | Kurt Eichenberger, Niklaus Buhler, Richard Goschke, Knut A. Jaeggi | 1980-01-22 |