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

Hermann Luyken — 87 Patents

Basf Se: 83 patents #60 of 13,826Top 1%
Ludwigshafen am Rhein, DE: #5 of 261 inventorsTop 2%
Overall (All Time): #19,150 of 4,157,543Top 1%
87 Patents All Time
Hermann Luyken has been granted 87 US patents while listed as an inventor at Basf Se. The first was granted in 1991 and the most recent in February 2025. Hermann Luyken ranks #19,150 of 4,157,543 US inventors in our database (top 0.46%). Patent records list Hermann Luyken in Ludwigshafen am Rhein, DE.

Patents per Year

Patents granted per year, 1991 to 2025Bar chart with a peak of 10 patents in 2001.peak 101991: 1 patents19911996: 1 patents1998: 2 patents2000: 4 patents20002001: 10 patents2002: 4 patents2004: 5 patents20042005: 5 patents2006: 4 patents2007: 2 patents20072008: 5 patents2009: 9 patents2010: 7 patents20102011: 3 patents2012: 1 patents2013: 2 patents20132014: 1 patents2015: 4 patents2016: 3 patents20162017: 2 patents2018: 2 patents2021: 3 patents20212022: 5 patents2023: 1 patents2025: 1 patents2025

Issued Patents All Time

Showing 1–25 of 87 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12221402 Method for the production of ethyleneamines Barbara BECKER, Thomas Heidemann, Regine Helga Bebensee, Eva Koch, Johann-Peter Melder +2 more 2025-02-11
11753364 Method for producing C2-C4 mono alkanol amines using an acid cation exchanger as a catalyst Christian Gruenanger, Gabriele Iffland, Zeljko Kotanjac, Thomas Krug, Jian Yi +1 more 2023-09-12
11492324 Method for the production of ethyleneamines 2022-11-08
11390578 Method for synthesizing amines Martin Ernst, Ansgar Gereon Altenhoff 2022-07-19
11339117 Method for the production of ethyleneamines 2022-05-24
11225455 Separation of n-methylethylenediamine from EDA-containing mixtures 2022-01-18
11214535 Method for producing ethyleneamines Regine Helga Bebensee, Thomas Heidemann, Barbara BECKER, Eva Koch, Johann-Peter Melder 2022-01-04
11208373 Method for the production of ethyleneamines Thomas Heidemann, Barbara BECKER, Eva Koch, Johann-Peter Melder 2021-12-28
11021434 Method for producing ethyleneamines 2021-06-01
10941092 Hydroformylation process for producing 1,6-hexanediol derivatives Marek Pazicky, Martin Ernst, Nicolas MARION, Rocco Paciello, Johann-Peter Melder 2021-03-09
9914693 Process for preparing EDA using SO2-free hydrocyanic acid Stephanie Jaegli, Michael Lorenz, Gordon Brasche, Markus Jegelka, Barbara BECKER +4 more 2018-03-13
9890113 Method for continuous production of adiponitrile Rolf Fischer, Robert Baumann, Veronika Wloka 2018-02-13
9828329 Method for the distillative purification of EDA Stephanie Jaegli, Michael Lorenz, Gordon Brasche, Markus Jegelka, Barbara BECKER +4 more 2017-11-28
9822067 Method for purifying adipodinitrile (ADN) Peter Pfab, Tim Jungkamp 2017-11-21
9493405 Method for producing linear pentenenitrile Tim Jungkamp, Robert Baumann, Michael Bartsch, Gerd Haderlein, Jens Scheidel +5 more 2016-11-15
9446960 Process for ion exchange on zeolites William Todd Owens 2016-09-20
9249029 Single chamber vaporizer and use thereof in chemical synthesis Ralf Boehling, Michael Schipper, Stefan Birnbach, Peter Petersen, Achim Gritsch +3 more 2016-02-02
9096497 Process for preparing EDDN and EDMN Sebastian Ahrens, Gordon Brasche, Jens Baldamus, Robert Baumann, Randolf Hugo +4 more 2015-08-04
9012638 Process for preparing EDDN and/or EDMN by conversion of FACH and EDA Sebastian Ahrens, Gordon Brasche, Jens Baldamus, Robert Baumann, Randolf Hugo +4 more 2015-04-21
8952156 Process for working up reaction outputs from the hydrogenation of EDDN or EDMN Sebastian Ahrens, Gordon Brasche, Jens Baldamus, Robert Baumann, Randolf Hugo +4 more 2015-02-10
8946459 Process for preparing EDDN and/or EDMN by reacting EDFA and/or EDMFA with HCN Sebastian Ahrens, Gordon Brasche, Jens Baldamus, Robert Baumann, Randolf Hugo +4 more 2015-02-03
8772527 Process for isomerization of cis-2-pentenenitrile to 3-pentenenitriles Rolf Fischer, Alfred Oftring, Robert Baumann 2014-07-08
8530690 Process for isomerizing CIS-2-pentenenitrile to 3-pentenenitriles Peter Pfab, Robert Baumann, Andreas Leitner, Tobias Aechtner 2013-09-10
8410299 Method for producing linear pentenenitrile Tim Jungkamp, Robert Baumann, Michael Bartsch, Gerd Haderlein, Jens Scheidel +5 more 2013-04-02
8278474 Method for the separation of pentenenitrile isomers Tim Jungkamp, Robert Baumann, Michael Bartsch, Gerd Haderlein, Jens Scheidel 2012-10-02