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USPTO Patent Rankings Data through Sept 30, 2025
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Horst Kluver — 3 Patents

SASartorius Ag: 3 patents #39 of 210Top 20%
Dransfeld, DE: #17 of 47 inventorsTop 40%
Overall (All Time): #1,658,413 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5227070 Textile reinforced membrane filter, method for manufacture and application Dietmar Nussbaumer, Eberhard Wunn 1993-07-13
4969997 Fluid-impermeable areas on porous membrane filters and their application Dietmar Nussbaumer, Eberhard Wunn 1990-11-13
4392963 Resorcinol or phloroglucinol condensation product for aqueous mixture purification Horst Perl, Dietmar Nussbaumer, Hans Beer 1983-07-12