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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Ansgar SCHAEFER — 2 Patents

Basf Se: 2 patents #5,851 of 13,826Top 45%
Karlsruhe, DE: #649 of 1,998 inventorsTop 35%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Ansgar SCHAEFER has been granted 2 US patents while listed as an inventor at Basf Se. The first was granted in 2015 and the most recent in March 2019. Ansgar SCHAEFER ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Ansgar SCHAEFER in Karlsruhe, DE.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10221255 Composition for the immediate stopping of a free-radical polymerization Ann-Kathrin Marguerre, Christian Raith, Christof Kujat, Friedrich-Georg Martin, Daher Michael Badine +6 more 2019-03-05
9173391 Crystalline complexes of 4-hydroxy benzoic acid and selected pesticides Heidi Emilia Saxell, Rafel Israels, Matthias Bratz, Hans Wolfgang Hoeffken, Ingo Brode +2 more 2015-11-03