Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
GS

Gunther Schweier — 42 Patents

Basf Se: 20 patents #668 of 13,826Top 5%
BGBasell Polyolefine Gmbh: 16 patents #20 of 517Top 4%
BGBasell Polypropylen Gmbh: 3 patents #4 of 40Top 10%
BSBasell Poliolefine Italia S.R.L.: 1 patents #202 of 332Top 65%
NCNovolen Technology Holdings, C.V.: 1 patents #6 of 17Top 40%
Friedelsheim, DE: #2 of 31 inventorsTop 7%
Overall (All Time): #74,017 of 4,157,543Top 2%
42 Patents All Time

Issued Patents All Time

Showing 26–42 of 42 patents

Patent #TitleCo-InventorsDate
6326444 Preparation of polymers of alkenes by suspension polymerization John Lynch, David Fischer, Hans-Helmut Görtz 2001-12-04
6265339 Process for preparing carrier-borne transition metal catalysts Wolfgang Bidell, Franz Langhauser, Ulrich Moll, Ian David McKenzie, David Fischer +5 more 2001-07-24
6200922 Catalyst systems of the Ziegler-Natta type Stephan Huffer, Wolfgang Bidell, Patrik Müller, Ulrich Moll, Roland Hingmann 2001-03-13
6197900 Preparation of multiphase homo- or copolymers of C2-C10-alk-1-enes in one reaction zone Stefan Seelert, Franz Langhauser, Jurgen Kerth, Patrik Müller, David Fischer 2001-03-06
6156691 Ziegler-Natta catalyst systems modified during their preparation Stephan Huffer, Ulrich Moll, Ian David McKenzie, Franz Langhauser, Peter Kölle +3 more 2000-12-05
6100353 Supported metallocene catalyst systems John Lynch, David Fischer, Franz Langhauser, Hans-Helmut Görtz, Jurgen Kerth 2000-08-08
6022935 Preparation of polymers of alk-1-enes in the presence of a supported metallocene catalyst system and of antistatic agent David Fischer, Helmut Frank, Martin Lux, Roland Hingmann 2000-02-08
5912373 Process for converting the achiral meso form of an ansa-metallocene complex into the chiral racemic form David Fischer, Franz Langhauser, Jurgen Kerth, Hans-Herbert Brintzinger, Katrin Schmidt 1999-06-15
5883277 Metallocene complexes with cationic bridges David Fischer, Franz Langhauser, Hans-Herbert Brintzinger, Nadine Leyser 1999-03-16
5840950 Process for converting the achiral meso form or the racemate of an ansa-metallocene complex or mixtures thereof into one of its enantiomers David Fischer, Franz Langhauser, Rainer Stürmer, Jurgen Kerth, Hans-Herbert Brintzinger +1 more 1998-11-24
5831106 Preparation of bridged metallocene complexes Franz Langhauser, David Fischer, Hans-Herbert Brintzinger, Hans-Robert-Hellmuth Damrau 1998-11-03
5756608 Polymerization process using metallocene complexes in the catalyst system Franz Langhauser, David Fischer, Jurgen Kerth, Hans-Herbert Brintzinger, Elke Barsties +1 more 1998-05-26
5688881 Oligomers and polymers of aminoalkenes David Fischer, Franz Langhauser, Jurgen Kerth, Rolf Muelhaupt, Martin Schneider 1997-11-18
5670683 Racemic metallocene complexes and their preparation Franz Langhauser, Jurgen Kerth, Hans-Herbert Brintzinger, Stefan Mansel 1997-09-23
5639839 Oligomers and polymers of aminoalkenes David Fischer, Franz Langhauser, Jurgen Kerth, Rolf Muelhaupt, Martin Schneider 1997-06-17
5491205 Preparation of polymers of C.sub.2 -C.sub.10 -alk-1-enes using racemic metal-locene complexes as catalysts Franz Langhauser, Jurgen Kerth, Hans-Herbert Brintzinger, Stefan Mansel, Werner Roell +1 more 1996-02-13
5483002 Propylene polymers having low-temperature impact strength Stephan Seelert, Franz Langhauser, Jurgen Kerth, Patrik Müller, David Fischer 1996-01-09