Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6086201 | Spectacle mount with a locking block-screw connection secured against loosening | — | 2000-07-11 |
| 6018044 | Light screening compositions | — | 2000-01-25 |
| 5976512 | Symetrical hydroxyphenyl-s-triazine compositions | — | 1999-11-02 |
| 5874576 | Light screening agents | — | 1999-02-23 |
| 5840282 | Light screening compositions | Hans Ulrich Gonzenbach, Peter Gygax, Bernhard Hostettler | 1998-11-24 |
| 5536453 | Light screening agent | — | 1996-07-16 |
| 5481001 | Light screening agent | — | 1996-01-02 |
| 5470991 | Process for the manufacture of furan derivatives | — | 1995-11-28 |
| 4428886 | Novel intermediates for the preparation of .alpha.-hydroxycarbonyl compounds | Hans-Jakob Wild | 1984-01-31 |
| 4318855 | Process for the preparation of alpha-hydroxycarbonyl compounds | Hans-Jakob Wild | 1982-03-09 |
| 4285984 | Flavoring with dialkylamino-alkylene mercaptans and sulfides | — | 1981-08-25 |
| 4275350 | Sample spinning mechanism for NMR probes | Howard D. W. Hill | 1981-06-23 |
| 4208338 | Cyano dihydro furanones | Hans-Jakob Wild | 1980-06-17 |
| 4181666 | Process for making furanones | Hans-Jakob Wild | 1980-01-01 |