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USPTO Patent Rankings Data through Dec 31, 2025
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Manfred Schramm — 2 Patents

Basf Se: 2 patents #5,851 of 13,826Top 45%
Viernheim, DE: #61 of 133 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Manfred Schramm has been granted 2 US patents while listed as an inventor at Basf Se. The first was granted in 1983 and the most recent in December 1991. Manfred Schramm ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Manfred Schramm in Viernheim, DE.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5071445 Novel reaction products of aminoalkylene polycarboxylic acids with secondary amines and middle distillate compositions containing the aforesaid Knut Oppenlaender, Brigitte Wegner, Klaus Barthold, Erich Schwartz, Egon Buettner 1991-12-10
4417038 Ethylene-alkyne copolymers, their preparation and their use as additives to petroleum distillates Hans-Henning Vogel, Michael J. Werner, Erich Schwartz 1983-11-22