Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5762651 | Dustproofing agents | Hans Schulze, Thomas O. Nagel, Hans-Werner Petroll, Udo Herrmann | 1998-06-09 |
| RE35768 | Process for the preparation of improved dyestuff granules from suspension containing a propylene oxide-ethylene oxide copolymer | Vaclav Kaspar, Gottfried Popp | 1998-04-14 |
| 5565102 | Process for purifying organic synthesis products | Karlheinz Hildenbrand, Dietrich Tegtmeyer, Ralf Friedricsen, Wolfgang Zarges | 1996-10-15 |
| 5462365 | Composite radial-axial plain bearing | — | 1995-10-31 |
| 5267797 | Combined radial/axial friction bearing and method for its manufacture | — | 1993-12-07 |
| 5213583 | Process for the preparation of improved dyestuff granules from suspension containing a propylene oxide-ethylene oxide copolymer | Vaclav Kaspar, Gottfried Popp | 1993-05-25 |
| 5160348 | Mixtures of blue azo disperse dyestuffs | Manfred Hoppe, Dieter Wiegner, Klaus-Peter Sagner, Heinz Jordan | 1992-11-03 |
| 4846409 | Process for the preparation of granules | Vaclav Kaspar, Manfred Baecker, Friedrich Grimmelijkhuizen, Karlheinz Wolf | 1989-07-11 |
| 4743269 | Process for preparing navy dyeings on polyester fibers using mixture of blue and red azo dyes | Wolfgang Haebler, Heinz Geiger, Hans Otten | 1988-05-10 |
| 4722737 | Stable gamma-modification of a benzisothiazole azo dyestuff | Klaus Leverenz | 1988-02-02 |
| 4655661 | Self-cutting fast construction screw | — | 1987-04-07 |
| 4523926 | Mixtures of disperse dyestuffs | Gunter Gehrke, Rolf Muders, Hans Otten, Dieter Wiegner | 1985-06-18 |
| 4374642 | Dyestuff mixtures, a process for their preparation and a process for dyeing hydrophobic fibres | Reinhold Hornle, Richard Buchele, Dieter Wiegner | 1983-02-22 |
| 4329145 | Process for producing liquid dyestuff preparations | Jochen Koll, Hans-Heinz Molls, Reinhold Hornle, Erhard Schuffenhauer, Fritz Bremer +2 more | 1982-05-11 |