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USPTO Patent Rankings Data through Dec 31, 2025
HW

Henning Wienand — 9 Patents

Basf Se: 8 patents #2,129 of 13,826Top 20%
Hockenheim, DE: #13 of 132 inventorsTop 10%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Henning Wienand has been granted 9 US patents while listed as an inventor at Basf Se. The first was granted in 1984 and the most recent in May 1998. Henning Wienand ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Henning Wienand in Hockenheim, DE.

Patents per Year

Patents granted per year, 1984 to 1998Bar chart with a peak of 2 patents in 1995.peak 21984: 1 patents19841985: 1 patents19851986: 1 patents19861987: 1 patents19871989: 1 patents19891993: 1 patents19931995: 2 patents19951998: 1 patents1998

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
5753028 Ferriferous bismuth vanadate pigments Harald Ochmann, Hansulrich Reisacher, Helmut Knittel, Norbert Mronga, Gunter Etzrodt 1998-05-19
5451253 Preparation of transparent yellow iron oxide pigments Paul Klingelhoefer, Christoph Schwidetzky, Norbert Mronga, Ekkehard Schwab, Michael W. Nebel 1995-09-19
5445672 Laked tris- or tetracationic polymethine dyes Friedrich Closs, Bernhard Albert 1995-08-29
5273577 Bismuth phosphovanadate pigments Egon Liedek, Helmut Knittel, Hans Ulrich Reisacher, Norbert Mronga, Harald Ochmann 1993-12-28
4851049 Thermostable bismuth vanadate/molybdate pigments Werner Ostertag, Christoph Schwidetzky, Helmut Knittel 1989-07-25
4702775 Preparation of magnetite pigments: control of particle size Werner Ostertag, Roland Bauer 1987-10-27
4629616 Basic chromium aluminum sulfates and their preparation Werner Ostertag, Dietrich Lach, Erwin Hahn 1986-12-16
4530725 Preparation of thermally stable lead chromate pigments Werner Ostertag, Peter Dimroth, Egon Liedek, Helmut Knittel, Gunter Etzrodt 1985-07-23
4455174 Yellow pigment containing bismuth vanadate and having the composition BiVO.sub.4.xBi.sub.2 MoO.sub.6.yBi.sub.2 WO.sub.6 Werner Ostertag, Knut Bittler 1984-06-19