Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6663258 | Portable illumination device | — | 2003-12-16 |
| D476438 | Illumination device | — | 2003-06-24 |
| 6056967 | Method of producing water-soluble condensates and addition products containing amino groups, and use of said condensates and addition products | Ulrich Steuerle, Hubert Meixner, Rainer Dyllick-Brenzinger, Wolfgang Reuther, Albert Hettche +2 more | 2000-05-02 |
| 5104991 | Preparation of phenyloxadiazolylanilines | Joachim Jesse | 1992-04-14 |
| 5028705 | Preparation of pyrazolo[5,1-b]quinazolones | Burkhard Ort | 1991-07-02 |
| 4925946 | Preparation of pyrazolo(5,1-B)quinazolones | Burkhard Ort | 1990-05-15 |
| 4897478 | Preparation of haloisatoic anhydrides | Heinrich Kowarsch, Burkhard Ort | 1990-01-30 |
| 4367173 | Azo pigments containing pyrazoloquinazolone radicals | — | 1983-01-04 |
| 4294755 | Pigments containing pyrazolo quinazolone radicals | — | 1981-10-13 |