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

Bernd Kempf — 24 Patents

JDJohn Deere: 10 patents #450 of 5,518Top 9%
DADegussa Ag: 6 patents #201 of 2,007Top 15%
UKUmicore Ag & Co. Kg: 4 patents #83 of 444Top 20%
UMUmicore: 1 patents #113 of 234Top 50%
TGTyco Electronics Amp Gmbh: 1 patents #91 of 276Top 35%
DADegussa-Huels Ag: 1 patents #156 of 473Top 35%
DADmc2 Degussa Metal Catalysts Cerdec Ag: 1 patents #15 of 35Top 45%
Althornbach, DE: #2 of 2 inventorsTop 100%
Overall (All Time): #168,038 of 4,157,543Top 5%
24 Patents All Time
Bernd Kempf has been granted 24 US patents while listed as an inventor at John Deere. The first was granted in 1988 and the most recent in May 2015. Bernd Kempf ranks #168,038 of 4,157,543 US inventors in our database (top 4.0%). Patent records list Bernd Kempf in Althornbach, DE.

Patents per Year

Patents granted per year, 1988 to 2015Bar chart with a peak of 3 patents in 1993.peak 31988: 1 patents19881989: 1 patents1993: 3 patents19931994: 1 patents1997: 1 patents19971998: 1 patents1999: 1 patents19992000: 1 patents2001: 2 patents20012003: 1 patents2004: 1 patents20042005: 1 patents2006: 1 patents20062007: 3 patents2009: 1 patents20092010: 2 patents2014: 1 patents20142015: 1 patents2015

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9028586 Oxidation method Gunther WIEHL, Werner Roth, Andreas Koch, Peter Braumann, Ralf Niederreuther 2015-05-12
8749330 Electric contact element and method for producing an electric contact element Jens Heinrich, Ralf Hoffmann, Peter Sandeck, Martin Wieberger, Peter Braumann +2 more 2014-06-10 $10,460,000
7842274 Process for manufacture of silver-based particles and electrical contact materials Dan V. Goia, Sebastian Fritzsche, Peter Braumann, Thierry Charles Simon Vandevelde 2010-11-30
7754280 Silver/carbon-based material and method for producing the same for contact material Roger Wolmer, Carsten Boehme, Werner Roth, Andreas Koffler 2010-07-13
7566437 Process for manufacture of silver-based composite powders for electrical contact materials and composite powders so produced Dan V. Goia, Inge Fallheier, Roger Wolmer, Andreas Koffler 2009-07-28
7297178 Method and device for producing spherical metal particles Georg Ptaschek, Hans-Martin Ringelstein, Roland Fuchs, Calogero DiVicenzo 2007-11-20
7213389 Infinitely variable transmission for a combine header unit Joseph Albert Teijido, Jeffrey Wigand, Daniel Ray Anderson, Robert W. Hawkins, Werner Stettler +2 more 2007-05-08 $20,723,000
7200980 Drive system of a self-propelled working machine 2007-04-10 $146,647,000
7044257 Drive system of a utility vehicle Jürgen Hofer, Stefan Bohrer 2006-05-16 $19,470,000
6941737 Safety arrangement of a harvesting machine 2005-09-13 $14,479,000
6810649 Drive system for a crop processing device and for a crop transport device of a harvesting machine 2004-11-02 $9,873,000
6649559 Supported metal membrane, a process for its preparation and use Ernst Drost, Werner Kuhn, Meike Roos, Stefan Wieland 2003-11-18
6262307 Shaped, activated metal, fixed-bed catalyst Andreas Freund, Monika Berweiler, Barbara Bender 2001-07-17
6247296 Drive arrangement for the crop conveying and/or processing mechanism of a harvesting machine Klaus Becker, Jörg Weissig 2001-06-19 $16,515,000
6052978 Ensilage harvester variable speed feed roll drive 2000-04-25 $34,043,000
5865444 Body leveling suspension including a pivoting arrangement Heinrich Scheid, Wolfgang Roth, Klaus H. Pauli, Wolfgang VonMeltzing 1999-02-02 $59,920,000
5833462 Precision attachments for dental technology capable of being cast on Hans-Martin Ringelstein, Alexander Voelcker, Ulrich Birkholz 1998-11-10
5695714 Gold-palladium alloys for dental materials Doris Hathaway, Gernot Schoeck, Hans-Martin Ringelstein, Bernd Meier 1997-12-09
5298218 Palladium based alloy for dental applications Werner Groll, Doris Hathaway, Gernot Schock 1994-03-29
5250110 Dustfree investment material for accurately fitting cast pieces and method of producing these investment materials Gerlinde Gantert, Klaus-Peter Gundlach, Ulrich Kump 1993-10-05
5240172 Solder alloy for dental and jewelry parts Rudi Steinke, Stefan Schittny, Werner Groll 1993-08-31
5221207 Yellow dental alloy with a high gold content Gernot Schoeck, Werner Groll 1993-06-22
4844223 Arrangement for braking a gearbox component Heinrich Scheid 1989-07-04
4738651 Steplessly adjustable belt-type transmission Serge Favache, Karl Rabung 1988-04-19 $2,426,000