For the Inventor, By the Inventor

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Wuppertal, Germany

Hermann Hemscheidt Maschinenfabrik Gmbh & Co.

USPTO Granted Patents = 30

Trademarks = 1

Forward Citations = 199

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27 inventors (with patents filed for the assignee):

Karl Krieger (10 out of 15 patents)

Werner Reinelt (9 out of 25 patents)

Guy Geuns (4 out of 6 patents)

4. Alfred Maykemper (4 out of 5 patents)

5. Josef Welzel (3 out of 7 patents)

6. Walter L Runkel (3 out of 22 patents)

7. Hans Bull (3 out of 5 patents)

8. Wolfgang Kobow (2 out of 8 patents)

9. Hans-Otto Friedrichs (2 out of 4 patents)

10. Gunther Kuschke (2 out of 2 patents)

11. Heinrich Kowalik (1 out of 1 patent)

12. Peter Pletsch (1 out of 1 patent)

13. Gerald Kohl (1 out of 1 patent)

14. Otmar Pfeiffer (1 out of 1 patent)

15. Werner Reihelt (1 out of 1 patent)

30 patents: Sort by Forward Citations

1. 5401123 - Control device for mine-roof support (1995-03-28),

2. 5362133 - Method of mining coal seams at a defined preset depth of cutting during (1994-11-08),

3. 5246247 - Hydropneumatic suspension system (1993-09-21),

4. 5217733 - Device for an injection mould (1993-06-08),

5. 5181451 - Control system for longwall face support frames (1993-01-26),

6. 5146948 - Damping valve with improved damping adjustment (1992-09-15),

7. 5050060 - Intrinsically safe power supply unit (1991-09-17),

8. 5017051 - Electrohydraulic control means for hydraulic self-advancing support units (1991-05-21),

9. 5011433 - Multipole connector for control devices in underground working (1991-04-30),

10. 4782736 - Pressure-control valve (1988-11-08),

11. 4757835 - Change-over valve for hydraulic walking mine-roof supports (1988-07-19),

12. 4737051 - Mobile mine-roof support (1988-04-12),

13. 4676698 - Hydraulic valve control apparatus (1987-06-30),

14. 4662797 - Adaptable housing for a video terminal (1987-05-05),

15. 4660595 - Pressure-limiting valve (1987-04-28),

Hermann Hemscheidt Maschinenfabrik GmbH & Co. is a leading provider of high-quality machinery solutions for various industries. With years of experience and expertise, we specialize in manufacturing heavy-duty machines such as hydraulic presses, automation systems, and tools. Our products are known for their reliability, efficiency, and precision, meeting the diverse needs of our global clients. Visit our website to explore our range of products and learn more about our company.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

30 Patents

#17 in Wuppertal

#1,625 in Germany

#21,181 in the World

Wuppertal, Germany

Hermann Hemscheidt Maschinenfabrik Gmbh & Co.

Forward Citations = 199

27 inventors:

Karl Krieger (10 out of 15 patents)

Werner Reinelt (9 out of 25 patents)

Guy Geuns (4 out of 6 patents)

4. Alfred Maykemper (4 out of 5 patents)

5. Josef Welzel (3 out of 7 patents)

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