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

Stefan Engel — 47 Patents

Basf Se: 47 patents #160 of 13,826Top 2%
Idstein, DE: #4 of 189 inventorsTop 3%
Overall (All Time): #59,703 of 4,157,543Top 2%
47 Patents All Time
Stefan Engel has been granted 47 US patents while listed as an inventor at Basf Se. The first was granted in 1998 and the most recent in June 2015. Stefan Engel ranks #59,703 of 4,157,543 US inventors in our database (top 1.4%). Patent records list Stefan Engel in Idstein, DE.

Patents per Year

Patents granted per year, 1998 to 2015Bar chart with a peak of 15 patents in 2000.peak 151998: 7 patents19981999: 4 patents2000: 15 patents20002001: 6 patents2002: 6 patents20022003: 2 patents2006: 2 patents20062007: 1 patents2009: 1 patents20092010: 2 patents2015: 1 patents2015

Issued Patents All Time

Showing 1–25 of 47 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9045465 3-heterocyclyl-substituted benzoyl derivatives Wolfgang von Deyn, Regina Luise Hill, Uwe Kardorff, Ernst Baumann, Guido Mayer +9 more 2015-06-02
7795465 Method for producing semicarbazones Thomas Zierke, Peter Otto 2010-09-14
7772446 Method for producing substituted biphenyls Tanja Oberding 2010-08-10
7608564 3-heterocyclyl-substituted benzoyl derivatives Wolfgang von Deyn, Regina Luise Hill, Uwe Kardorff, Ernst Baumann, Guido Mayer +9 more 2009-10-27
7232792 3-heterocyclyl-substituted benzoyl derivatives Wolfgang von Deyn, Regina Luise Hill, Uwe Kardorff, Ernst Baumann, Guido Mayer +9 more 2007-06-19 $1,666,000
7030063 Cyclohexenonquinolinoyl-derivatives as herbicidal agents Matthias Witschel, Ulf Misslitz, Ernst Baumann, Wolfgang von Deyn, Klaus Langemann +8 more 2006-04-18 $1,777,000
6992206 Method for producing 3-trifluoromethylphenyl-4-cyanobenzyl ketone Michael Keil, Christian Ott, Michael Rack 2006-01-31 $604,000
6576596 Substituted 2-benzoyl-cyclohexan-1,3-diones with herbicidal effect Regina Luise Hill, Uwe Kardorff, Michael Rack, Ernst Baumann, Wolfgang von Deyn +7 more 2003-06-10 $724,000
6559100 2-benzoyl-cyclohexane-1,3-diones Joachim Rheinheimer, Ernst Baumann, Wolfgang von Deyn, Regina Luise Hill, Guido Mayer +6 more 2003-05-06 $391,000
6500950 Benzylidenepyrazolones, their preparation and use Joachim Rheinheimer, Matthias Witschel, Ernst Baumann, Wolfgang von Deyn, Regina Luise Hill +6 more 2002-12-31 $530,000
6479436 Hetaroyl cyclohexanedione derivatives with herbicidal effect Martina Otten, Norbert Gotz, Wolfgang von Deyn, Uwe Kardorff, Peter Plath +5 more 2002-11-12 $410,000
6440899 Cyclohexenonedioxothiochromanoyl derivatives Matthias Witschel, Klaus Langemann, Wolfgang von Deyn, Ulf Misslitz, Ernst Baumann +7 more 2002-08-27 $356,000
6432881 2-benzoylcyclohexane-1,3-dione as herbicides Joachim Rheinheimer, Ernst Baumann, Wolfgang von Deyn, Regina Luise Hill, Guido Mayer +6 more 2002-08-13 $290,000
6407268 Substituted 4-benzoylpyrazoles Ernst Baumann, Wolfgang von Deyn, Regina Luise Hill, Uwe Kardorff, Guido Mayer +6 more 2002-06-18 $459,000
6372693 Substituted 2-(3-alkenyl-benzoyl)-cyclohexane-1,3-diones Ernst Baumann, Wolfgang von Deyn, Regina Luise Hill, Uwe Kardorff, Guido Mayer +7 more 2002-04-16 $547,000
6326333 Pyrazolyldioxothiochromanoyl derivatives Matthias Witschel, Klaus Langemann, Wolfgang von Deyn, Ulf Misslitz, Ernst Baumann +6 more 2001-12-04 $762,000
6310245 3-aminocarbonyl/3-aminothiocarbonyl-substituted 2-benzoyl-cyclohexan-1,3-diones with herbicidal effect Uwe Kardorff, Regina Luise Hill, Michael Rack, Wolfgang von Deyn, Martina Otten +7 more 2001-10-30 $451,000
6291682 Pyrazol-4-ylbenzoyl derivatives and their use as herbicides Martina Otten, Wolfgang von Deyn, Regina Luise Hill, Uwe Kardorff, Marcus Vossen +5 more 2001-09-18 $278,000
6271179 Benzylidene pyrazolones, production and use thereof Joachim Rheinheimer, Matthias Witschel, Ernst Baumann, Wolfgang von Deyn, Regina Luise Hill +6 more 2001-08-07 $304,000
6262074 4-Hetaroylpyrazol derivatives and the use thereof as herbicides Martina Otten, Norbert Gotz, Wolfgang Deyn, Uwe Kardorff, Michael Rack +6 more 2001-07-17 $205,000
6207618 Heterocyclic substituted 4-benzoyl-pyrazole as herbicides Joachim Rheinheimer, Ernst Baumann, Wolfgang von Deyn, Regina Luise Hill, Guido Mayer +6 more 2001-03-27 $357,000
6165944 4-(3-heterocyclyl-1-benzoyl) pyrazoles and their use as herbicides Wolfgang von Deyn, Regina Luise Hill, Ernst Baumann, Guido Mayer, Joachim Rheinheimer +6 more 2000-12-26 $162,000
6165943 Thiazolimine derivatives Guido Mayer, Martina Otten, Uwe Kardorff, Ernst Baumann, Wolfgang von Deyn +8 more 2000-12-26 $162,000
6156702 Substituted 4-benzoylpyrazoles Joachim Rheinheimer, Ernst Baumann, Wolfgang von Deyn, Regina Luise Hill, Guido Mayer +6 more 2000-12-05 $435,000
6153759 Heterocyclic benzoyl intermediates for herbicidal compounds Wolfgang von Deyn, Regina Luise Hill, Uwe Kardorff, Martina Otten, Marcus Vossen +7 more 2000-11-28 $180,000