Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6215023 | Process for the preparation of cyclopropane carboxylic acids | Per D. Klemmensen, Ib Winckelmann | 2001-04-10 |
| 5986130 | Process for the preparation of cyclopropane carboxylic acids and intermediates therefor | Per D. Klemmensen, Ib Winckelmann | 1999-11-16 |
| 4282241 | Organic fluoro-imides, their preparation and use | Hans B. Madsen, Per D. Klemmensen | 1981-08-04 |
| 4229353 | (2,2-Disubstituted vinyl).gamma.-butyrolactones | Per D. Klemmensen, Hans B. Madsen | 1980-10-21 |
| 4219558 | Organic fluoro-imides and their use as miticides, etc. | Hans B. Madsen, Per D. Klemmensen | 1980-08-26 |