For the Inventor, By the Inventor

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Ames, IA, United States of America

Sauer-Danfoss Inc.

USPTO Granted Patents = 170

% Expired Patents = 52.9

Trademarks = 4

Forward Citations = 1,029

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142 inventors (with patents filed for the assignee):

Michael D Gandrud (15 out of 17 patents)

Frederic W Pollman (13 out of 23 patents)

Reinhardt Thoms (12 out of 23 patents)

4. Robert J Stoppek (11 out of 11 patents)

5. Carsten Fiebing (8 out of 10 patents)

6. Joseph J Schottler (7 out of 9 patents)

7. Jack Zeng (6 out of 7 patents)

8. Doug Kardell (6 out of 8 patents)

9. Michael A Betz (6 out of 14 patents)

10. Steven H Gluck (6 out of 6 patents)

11. Bernd Hames (5 out of 8 patents)

12. Michael R Olson (5 out of 5 patents)

13. Jeff L Herrin (5 out of 6 patents)

14. Robert Klinkel (5 out of 5 patents)

15. Eckhard Skirde (5 out of 9 patents)

Core Competencies:

Hydraulic Systems

Pressure Control

Electro-Hydraulic Units

Variable Displacement Pumps

Hydrostatic Transmission

Sensing Systems

Fluid Control

Joystick Devices

Tilt Sensors

Battery Powered Inverters

Traction Control

Microcontroller Housing

170 patents: Sort by Forward Citations

1. 9826288 - Sensing system for an automated vehicle (2017-11-21),

2. 9637873 - Sensing system for road construction equipment (2017-05-02),

3. 9127697 - Dynamically stable pressure control system (2015-09-08),

4. 9002582 - Multi-sonic sensor (2015-04-07),

5. 8943949 - Neutral setting apparatus of an adjustable hydraulic machine (2015-02-03),

6. 8855834 - Sensing system for following a stringline (2014-10-07),

7. 8646266 - Hydraulic output drive shaft generator (2014-02-11),

8. 8646167 - Method of actuating a wireless sensor of road construction equipment (2014-02-11),

9. 8528594 - Hydraulic system with leakage fluid removal (2013-09-10),

10. 8482523 - Magnetic control device (2013-07-09),

11. 8469677 - Check valve pump with electric bypass valve (2013-06-25),

12. 8469630 - Sensor system for construction equipment having wireless sonic sensor system (2013-06-25),

13. 8443596 - Hydraulic drive with an independent charge pump (2013-05-21),

14. D678283 - Vertical grip assembly (2013-03-19),

15. 8387738 - Electro-mechanical transmission for compact vehicles (2013-03-05),

Sauer-Danfoss Inc. is a global manufacturer and supplier of hydraulic and electrohydraulic systems, components, and controls. They offer a wide range of solutions for mobile equipment used in industries such as agriculture, construction, and material handling. With their expertise in innovative technology, Sauer-Danfoss is committed to delivering efficient and reliable solutions that enhance the performance and productivity of their customers' machinery.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

Sauer-Danfoss Inc.

170 Patents

#2 in Ames, IA

#15 in Iowa

#2,349 in US

#4,855 in the World

Ames, IA, United States of America

Sauer-Danfoss Inc.

Forward Citations = 1,029

142 inventors:

Michael D Gandrud (15 out of 17 patents)

Frederic W Pollman (13 out of 23 patents)

Reinhardt Thoms (12 out of 23 patents)

4. Robert J Stoppek (11 out of 11 patents)

5. Carsten Fiebing (8 out of 10 patents)

Please report any incorrect information to [email protected]

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