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

Stefan Wrede

LTLongyear Tm: 12 patents #6 of 72Top 9%
Kirchhundem, DE: #3 of 36 inventorsTop 9%
Overall (All Time): #411,279 of 4,157,543Top 10%
12 Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
10919726 Wireline system and methods of using same Thorsten Upmeier, Christof Kruse, Rene Maennel 2021-02-16
10384907 Wireline system and methods of using same Thorsten Upmeier, Christof Kruse, Rene Maennel 2019-08-20
8408328 Methods of controllling hydraulic motors Christof Kruse 2013-04-02
8172002 Methods of controlling hydraulic motors Christof Kruse 2012-05-08
8118113 Hydraulic control system for drilling systems Chrisof Kruse 2012-02-21
8118118 Modular rotary drill head Christof Kruse, Hans-Juergen Wahl 2012-02-21
8113299 Drill mast articulation assembly Christof Kruse 2012-02-14
8028613 Valve system for drilling systems Christof Kruse 2011-10-04
7997167 Clamping and breaking device Christof Kruse 2011-08-16
7905299 Articulation assembly for moving a drill mast Christof Kruse 2011-03-15
7779932 Drill-string shock absorbers Markus Hartung, Christof Kruse 2010-08-24
7770668 Modular rotary drill head Christof Kruse, Hans-Juergen Wahl 2010-08-10