Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
FP

Frank Prechtl — 21 Patents

Basf Se: 21 patents #618 of 13,826Top 5%
Frankfurt, DE: #52 of 1,298 inventorsTop 5%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
Frank Prechtl has been granted 21 US patents while listed as an inventor at Basf Se. The first was granted in 2000 and the most recent in August 2011. Frank Prechtl ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Frank Prechtl in Frankfurt, DE.

Patents per Year

Patents granted per year, 2000 to 2011Bar chart with a peak of 5 patents in 2002.peak 52000: 2 patents20002001: 1 patents20012002: 5 patents20022003: 5 patents20032004: 5 patents20042005: 1 patents20052007: 1 patents20072011: 1 patents2011

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7998314 Method for the production of paper, cardboard and card Oliver Koch, Rainer Blum, Detlef Kannengiesser 2011-08-16
7258902 Chiral 3,4-dihydro-2H-pyran compounds Robert Parker, Sylke Haremza, Frank Meyer, Volkmar Vill, Gunnar Gesekus 2007-08-21 $1,157,000
6850310 Cholesteric layered material having improved color stability, and the production thereof Norbert Schneider, Frank Meyer, Peter Blaschka, Sylke Haremza, Tilmann Hezel +2 more 2005-02-01 $262,000
6793986 Polymerizable liquid crystals Robert Parker, Peter Schuhmacher, Norbert Schneider, Sylke Haremza, Hans-Werner Schmidt +1 more 2004-09-21 $213,000
6712992 Liquid-crystalline composition of matter Sylke Haremza, Frank Meyer, Robert Parker, Kathrin Kürschner, Peter Schuhmacher +3 more 2004-03-30 $256,000
6699405 Polymerizable liquid crystals Robert Parker, Peter Schuhmacher, Norbert Schneider, Sylke Haremza, Hans-Werner Schmidt +1 more 2004-03-02 $388,000
6695977 Use of chiral, uncharged metal compounds as dopants for liquid-crystalline materials Sylke Haremza, Robert Parker, Kathrin Kürschner, Manfred Braun, Antje Hahn +1 more 2004-02-24 $253,000
6680390 Use of substituted vinyl-tetrahydronaphthalenes and vinyl-benzotetrahydropyrans as light protection agents Thorsten Habeck, Horst Westenfelder, Thomas Wilnsch 2004-01-20 $609,000
6616990 Chiral 1, 3-dioxane compounds Sylke Haremza, Frank Meyer, Robert Parker, Kathrin Kürschner, Volkmar Vill +1 more 2003-09-09 $368,000
6605235 Cholesteric layered material having an improved color impression, and the production thereof Frank Meyer, Norbert Schneider, Peter Heilmann, Volker Koch, Robert Parker +2 more 2003-08-12 $924,000
6603014 Use of cyclic enamines as light protection agents Thorsten Habeck, Thomas Wunsch, Horst Westenfelder 2003-08-05 $596,000
6569355 Chiral compounds, and their use as chiral dopants for the preparation of cholesteric liquid-crystalline compositions Sylke Haremza, Frank Meyer, Robert Parker, Volkmar Vill, Gunnar Gesekus 2003-05-27 $603,000
6524560 Use of substituted vinyltetrahydronaphthalenes and vinyl-benzotetrahydropyrans as light protection agents Thorsten Habeck, Horst Westenfelder, Thomas Wunsch 2003-02-25 $293,000
6485527 Use of reactive dyes for dyeing hair Manfred Patsch, Peter Hossel 2002-11-26 $591,000
6468444 Chiral compounds and their use as chiral dopants for producing cholesteric liquid crystal compositions Frank Meyer, Peter Schuhmacher 2002-10-22 $266,000
6413503 Use of cyclic enamines as light protection agents Thorsten Habeck, Thomas Wunsch, Horst Westenfelder 2002-07-02 $273,000
6410698 Reactive dyes with a combination anchor Manfred Patsch 2002-06-25 $235,000
6409995 Use of amino-substituted hydroxybenzophenones as photostable UV filters in cosmetic and pharmaceutical preparations Thorsten Habeck, Thomas Wunsch, Horst Westenfelder, Sylke Haremza, Thorsten Bach +1 more 2002-06-25 $235,000
6278025 Process for the preparation of substituted dibenzoylmethane compounds Thorsten Habeck 2001-08-21 $372,000
6159454 Use of cholesteric liquid-crystalline polymers as UV screens in cosmetic and pharmaceutical preparations Peter Schuhmacher 2000-12-12 $247,000
6159455 Dimeric .alpha.-alkylstyrene derivatives as photostable UV filters in cosmetic and pharmaceutical preparations Thorsten Habeck, Thomas Wunsch, Horst Westenfelder 2000-12-12 $247,000