Jan SPIELMANN — 8 Patents at Basf Se

Jan SPIELMANN has been granted 8 US patents while listed as an inventor at Basf Se. The first was granted in 2019 and the most recent in December 2025. Jan SPIELMANN ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Jan SPIELMANN in Mannheim, DE.

Patents per Year

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #	Title	Co-Inventors	Date
12503429	Process for manufacturing alkanesulfonic acids	Frank PIEPENBREIER, Andreas Kempter, Chee Jian CHAN, Rosario MAZARRO BERDONCES, Kerstin Schierle-Arndt +5 more	2025-12-23
11247967	Process for the manufacturing of alkanesulfonic acids	Frieder Borgmeier, Michael ZEILINGER, Juergen Wortmann	2022-02-15
10899705	Process for the manufacturing of methane sulfonic acid	Michael ZEILINGER, Juergen Wortmann, Frieder Borgmeier	2021-01-26
10894766	Process for the production of alkanesulfonic acids	Juergen Wortmann, 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	Juergen Wortmann, Katharina FEDERSEL, Feelly Ruether	2020-08-04
10577312	Process for purifying alkanesulfonic acids	Michael Koch, Juergen Wortmann, Feelly Ruether, Sabine Weiguny, Frieder Borgmeier	2020-03-03
10570514	Process for the generation of metallic films	Falko Abels, David Dominique Schweinfurth, Karl Matos, Daniel LOEFFLER, Maraike Ahlf +4 more	2020-02-25
10214485	Method of reprocessing alkanesulfonic acid	Michael Koch, Juergen Wortmann, Sabine Weiguny, Feelly Ruether, Robert Sengpiel	2019-02-26

Jan SPIELMANN — 8 Patents

Patents per Year

Issued Patents All Time

Patent Widget