{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Basf Se", "item": "https://www.patentleaderboard.com/company/basf-se"}, {"@type": "ListItem", "position": 3, "name": "Oskar Stephan", "item": "https://www.patentleaderboard.com/inventor/fl:os_ln:stephan-1"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
OS

Oskar Stephan — 20 Patents

Basf Se: 17 patents #864 of 13,826Top 7%
BGBasf Magnetics Gmbh: 1 patents #68 of 147Top 50%
EGEmtec Magnetics Gmbh: 1 patents #33 of 102Top 35%
LAList Ag: 1 patents #16 of 23Top 70%
LAList Technology Ag: 1 patents #3 of 9Top 35%
Hockenheim, DE: #2 of 132 inventorsTop 2%
Overall (All Time): #214,803 of 4,157,543Top 6%
20 Patents All Time
Oskar Stephan has been granted 20 US patents while listed as an inventor at Basf Se. The first was granted in 2000 and the most recent in June 2025. Oskar Stephan ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Oskar Stephan in Hockenheim, DE.

Patents per Year

Patents granted per year, 2000 to 2025Bar chart with a peak of 3 patents in 2014.peak 32000: 1 patents20002001: 1 patents2011: 1 patents20112013: 2 patents2014: 3 patents20142016: 3 patents2017: 1 patents20172019: 1 patents2020: 2 patents20202021: 2 patents2022: 1 patents20222024: 1 patents2025: 1 patents2025

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12331788 Process for connecting functional elements to a shaft 2025-06-17
11933552 Heat exchanger for heating gas and use of the heat exchanger Karl F. Schneider, Matthias Weismantel 2024-03-19
11535719 Method for the production of superabsorbers Gerald Gruenewald, Matthias Weismantel, Karl J. Possemiers, Monte Peterson, Ruediger Funk +2 more 2022-12-27
11154832 Fluidizing plate and apparatus comprising such a fluidizing plate Reiner Giese, Egon Schmidt, Juergen Freiberg, Norbert Eugen Voll, Michael Laible 2021-10-26
10928291 Method and device for classifying superabsorbent particles Norbert Eugen Voll, Rüdiger Funk 2021-02-23
10845257 Device and method for sensing torques, torsional natural frequencies, and/or torsional oscillations without contact Roland Schuhmann, Tom Catternan 2020-11-24
10539191 Process for connecting functional elements to a shaft 2020-01-21
10197536 Method for detecting damage to a hollow shaft 2019-02-05
9737911 Method for operating machines having moving parts and arranged jointly on a support Thomas Rosenberger 2017-08-22
9486777 Process for producing water-absorbing polymer particles Monte Peterson, John Perry Guentzel, Gregory Boykin, Leo Van Miert, Rene Callot +2 more 2016-11-08
9415529 Method for operating an apparatus with at least one rotating shaft Monte Peterson 2016-08-16
9382393 Process for producing water-absorbing polymer particles Norbert Eugen Voll, Karl J. Possemiers, Matthias Weismantel, Rüdiger Funk, Monte Peterson +2 more 2016-07-05
8883961 Process for producing water-absorbing polymer particles Monte Peterson, Filip Mees, John Perry Guentzel, Justin Martin, Dominicus van Esbroeck +4 more 2014-11-11
8853333 Process for operating a mixing kneader Monte Peterson, Karl J. Possemiers, Steven Lippens 2014-10-07
8765898 Process for producing water-absorbing polymer particles Monte Peterson, Ronny De Kaey, Leo Van Miert, Rüdiger Funk, Matthias Weismantel +2 more 2014-07-01
8394895 Method for the continuous thermal secondary surface cross-linking of water-absorbing polymer particles Karl J. Possemiers, Ann Becker, Leo Van Miert, Ronny De Kaey 2013-03-12
8342033 Method for avoiding overloading of a shaft Huanmin Wei, Wilfried Heide, Annemarie Hillebrecht, Asif Karim 2013-01-01
8070351 Mixing kneader and process for preparing poly(meth)acrylates using the mixing kneader Uwe Stueven, Leo Van Miert, Dominicus van Esbroeck, Annemarie Hillebrecht, Huanmin Wei 2011-12-06
6223904 Continuous process for recovering raw materials from coated foils, device for carrying out this process and foil materials recovered thereby Franz Weingart, Uwe Burkhardt, Heino Thiele, Lothar Schwarz, Norbert Muller +1 more 2001-05-01
6129847 Recovery of raw materials from magnetic recording media Thomas Wunsch, Karl-Heinz Sartor, Axel Schulze, Norbert Muller, Jochen Eicher 2000-10-10 $252,000