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Zug, Switzerland

Hygrama Ag

USPTO Granted Patents = 19

Forward Citations = 114

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23 inventors (with patents filed for the assignee):

Volker Drittel (3 out of 3 patents)

Peter Rohatschek (2 out of 3 patents)

Günther Strasser (2 out of 2 patents)

4. Josef Vollmer (2 out of 3 patents)

5. Alfredo Hellemann (2 out of 2 patents)

6. Erhard Fritz (2 out of 2 patents)

7. Herbert Frisch (2 out of 9 patents)

8. Bernhard Russ (1 out of 4 patents)

9. Jochen Schaible (1 out of 11 patents)

10. Roland Zengerle (1 out of 15 patents)

11. Herbert Frisch (1 out of 8 patents)

12. Erich Dörfler (1 out of 1 patent)

13. Rainer Teltscher (1 out of 1 patent)

14. Herbert Frisch (1 out of 1 patent)

15. Hannes Wirtl (1 out of 1 patent)

19 patents: Sort by Forward Citations

1. 6959911 - Valve with bendable actuating element (2005-11-01),

2. 6945276 - Valve with unilaterally constrained piezoelectric bending element as actuating device (2005-09-20),

3. 6679162 - Working cylinder, switch valve and pressure-actuated working unit (2004-01-20),

4. 6321636 - Piston rod-less pneumatic cylinder (2001-11-27),

5. 6283010 - Piston rod-less pneumatic cylinder (2001-09-04),

6. 6276257 - Working cylinder, switch valve and pressure-actuated working unit (2001-08-21),

7. 6186175 - Rocker valve with pneumatic pre-control (2001-02-13),

8. 6173744 - Piezoelectric valve (2001-01-16),

9. 6101920 - Pneumatic or hydraulic cylinder with piston position detector mounted in (2000-08-15),

10. 6004383 - Membrane dryer for drying moist air with valved scavenger duct (1999-12-21),

11. 6000676 - Microvalve (1999-12-14),

12. 5924443 - Device for limiting the prestress of a control spring (1999-07-20),

13. 5862828 - Oscillating valve for a double acting operating cylinder (1999-01-26),

14. 5823088 - Pneumatic actuating arrangement (1998-10-20),

15. 5606903 - Rodless pressure cylinder (1997-03-04),

Hygrama Ag is a leading agricultural technology company that specializes in providing innovative solutions for crop monitoring and management. With a focus on sustainability and efficiency, Hygrama Ag's products help farmers optimize their yields while reducing environmental impact. The company's cutting-edge technology and expertise in data analysis make them a trusted partner for growers looking to improve their operations.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

19 Patents

#31 in Zug

#621 in Switzerland

#31,670 in the World

Zug, Switzerland

Hygrama Ag

Forward Citations = 114

23 inventors:

Volker Drittel (3 out of 3 patents)

Peter Rohatschek (2 out of 3 patents)

Günther Strasser (2 out of 2 patents)

4. Josef Vollmer (2 out of 3 patents)

5. Alfredo Hellemann (2 out of 2 patents)

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