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For the Inventor, By the Inventor

Nordborg, Denmark

Sauer Danfoss Aps


USPTO Granted Patents = 68

% Expired Patents = 35.3


Trademarks = 1

Forward Citations = 447

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73 inventors (with patents filed for the assignee):

goldMedal Svend Erik Thomsen (11 out of 43 patents)

silverMedal Brian Kongsgaard Nielsen (8 out of 14 patents)

bronzeMedal Thorkild Christensen (8 out of 27 patents)

4.  Siegfried Zenker (7 out of 21 patents)

5.  Niall James Caldwell (5 out of 45 patents)

6.  Poul Erik Hansen (5 out of 20 patents)

7.  Niels Bjarne Hansen (5 out of 10 patents)

8.  Bendt Porskrog (5 out of 12 patents)

9.  Onno Kuttler (5 out of 10 patents)

10.  Carl Christian Dixen (5 out of 11 patents)

11.  Tom Rudolph (4 out of 12 patents)

12.  Hans Christian Petersen (4 out of 27 patents)

13.  Kjeld Buus Jensen (4 out of 5 patents)

14.  Martin Raadkjaer Joergensen (4 out of 6 patents)

15.  Ken Kin-ho Lai (4 out of 4 patents)


Core Competencies:
Fluid Power
Hydraulic Steering
Valve Actuator
Joystick Control
Hydraulic Machine
Fluid Controller
Hydraulic Valve Arrangement
Hydraulic Control System
Pressure Reduction Valve
Servomotor
Cyclically Commutated Pump
Leakage Compensation

68 patents:

1. 10161423 - Fluid power distribution and control system (2018-12-25),
2. 9488163 - Fluid control system (2016-11-08),
3. 9038762 - Hydraulic steering (2015-05-26),
4. 9033309 - Valve actuator (2015-05-19),
5. 8668465 - Hydraulic system with supplement pump (2014-03-11),
6. 8660754 - Steer by wire control system (2014-02-25),
7. D695792 - Joystick (2013-12-17),
8. 8561643 - Control device for a hydrostatic steering motor (2013-10-22),
9. 8534416 - Hydraulic steering (2013-09-17),
10. 8528460 - Hydraulic valve arrangement (2013-09-10),
11. 8446365 - Joystick with a sensor device (2013-05-21),
12. 8444404 - Hydraulic machine (2013-05-21),
13. 8356544 - Raising drive and method for controlling a raising drive (2013-01-22),
14. 8347621 - Method of operating a fluid-working machine and a fluid-working machine (2013-01-08),
15. 8221102 - Hydraulic machine (2012-07-17),
Sauer Danfoss Aps, headquartered in Nordborg, Denmark, specializes in the development and manufacturing of hydraulic systems. The company focuses on fluid power technologies, providing innovative solutions such as hydraulic steering systems, valve actuators, and joystick controls. Their expertise extends to hydraulic machines and fluid controllers, enabling efficient hydraulic valve arrangements and control systems. With a commitment to advancing hydraulic technology, Sauer Danfoss serves various industries, enhancing performance and reliability in fluid power applications.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

Sauer Danfoss Aps
68 Patents

#4 in Nordborg

#52 in Denmark

#10,880 in the World

Nordborg, DK
Nordborg, Denmark

Sauer Danfoss Aps

Forward Citations = 447

73 inventors:

goldMedal Svend Erik Thomsen (11 out of 43 patents)

silverMedal Brian Kongsgaard Nielsen (8 out of 14 patents)

bronzeMedal Thorkild Christensen (8 out of 27 patents)

4.  Siegfried Zenker (7 out of 21 patents)

5.  Niall James Caldwell (5 out of 45 patents)

Please report any incorrect information to [email protected]
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