Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
AF

Ansgar Frericks

Basf Se: 2 patents #5,851 of 13,826Top 45%
Schüttorf, DE: #7 of 17 inventorsTop 45%
Overall (All Time): #2,070,547 of 4,157,543Top 50%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8426482 Method for producing viscoelastic polyurethane flexible foams Heinz-Dieter Lutter, Edmund Stadler, Heinz-Juergen Schroeder, Kirsten Simon, Andre Meyer +1 more 2013-04-23
6894139 Catalysts, in particular for the preparation of polyisocyanate polyadducts Martin Kreyenschmidt, Hauke Malz, Dieter Rodewald, Thomas Flug 2005-05-17