Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11247967 | Process for the manufacturing of alkanesulfonic acids | Frieder Borgmeier, Jan SPIELMANN, Michael ZEILINGER | 2022-02-15 |
| 11150031 | Use of a nitrate salt composition as a heat transfer or heat storage medium for first operation of an apparatus containing these media | Sabine Weiguny, Katharina FEDERSEL, Matthias Hinrichs, Stephan Maurer | 2021-10-19 |
| 10899705 | Process for the manufacturing of methane sulfonic acid | Jan SPIELMANN, Michael ZEILINGER, Frieder Borgmeier | 2021-01-26 |
| 10894766 | Process for the production of alkanesulfonic acids | Jan SPIELMANN, Frieder Borgmeier, Michael ZEILINGER, Rosario MAZARRO BERDONCES, Bjoern KAIBEL | 2021-01-19 |
| 10730827 | Process for purifying alkanesulfonic anhydride and process for producing alkanesulfonic acid using the purified alkanesulfonic anhydride | Jan SPIELMANN, Katharina FEDERSEL, Feelly Ruether | 2020-08-04 |
| 10577312 | Process for purifying alkanesulfonic acids | Jan SPIELMANN, Michael Koch, Feelly Ruether, Sabine Weiguny, Frieder Borgmeier | 2020-03-03 |
| 10214485 | Method of reprocessing alkanesulfonic acid | Jan SPIELMANN, Michael Koch, Sabine Weiguny, Feelly Ruether, Robert Sengpiel | 2019-02-26 |