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For the Inventor, By the Inventor

Frankfurt, Germany

Samson Aktiengesellschaft


USPTO Granted Patents = 137

% Expired Patents = 5.8


Trademarks = 14

Forward Citations = 379

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93 inventors (with patents filed for the assignee):

goldMedal Stefan Kolbenschlag (23 out of 23 patents)

silverMedal Joerg Kiesbauer (16 out of 18 patents)

bronzeMedal Lothar Kemmler (12 out of 15 patents)

4.  Andreas Sander (8 out of 8 patents)

5.  Frank Valentin-Rumpel (8 out of 8 patents)

6.  Heinfried Hoffmann (8 out of 10 patents)

7.  Wilfried Gerk (8 out of 9 patents)

8.  Michael Merscher (7 out of 8 patents)

9.  Harald Kah (6 out of 6 patents)

10.  David Wagner-Stuerz (6 out of 6 patents)

11.  Thomas Karte (6 out of 8 patents)

12.  Eugen Nebel (6 out of 6 patents)

13.  Domagoj Vnucec (5 out of 5 patents)

14.  Hartmut Hirt (5 out of 5 patents)

15.  Sebastian Krause (4 out of 4 patents)


Core Competencies:
Control Valve
Safety Valve
Electropneumatic Actuator
Pneumatic Drive System
Diagnostic Method
Fluid-Driven Safety
Position Sensor
Leak Detection
Valves
Actuator
Process Fluid
Cage Valve

137 patents:

1. 12704197 - Measuring device (2026-08-11),
2. 12680614 - Control valve (2026-07-14),
3. 12607537 - Method and devices for detecting output-side leaks in a double cone air power booster (2026-04-21),
4. 12596362 - Method for diagnosing an open- and/or closed-loop control system, and open- and/or closed-loop control system (2026-04-07),
5. 12528121 - Housing for a valve or a fitting, semi-finished product for such a housing and method for additively manufacturing such a housing (2026-01-20),
6. 12480599 - Testing the operability of a safety valve for a safety case (2025-11-25),
7. 12449064 - Cage valve (2025-10-21),
8. 12435814 - Spring fracture detection in a preloaded actuator of a control valve (2025-10-07),
9. 12379049 - Valve cage for a control valve (2025-08-05),
10. 12345356 - Control valve unit (2025-07-01),
11. 12345344 - Control valve (2025-07-01),
12. 12241566 - Adapter for wireless data transmission (2025-03-04),
13. 12241565 - Preventing control-induced oscillations of the position of a valve member in a valve with pneumatic actuator (2025-03-04),
14. 12181371 - Establishing termination criteria for a partial-stroke test of a fluid driven safety valve, and determining the proper functioning of a fluid driven safety valve (2024-12-31),
15. 12169032 - Actuator for a process plant (2024-12-17),
Samson Aktiengesellschaft, headquartered in Frankfurt, Germany, specializes in the development and manufacturing of control valves and associated technologies. The company focuses on innovative solutions in fluid control, including safety valves, electropneumatic actuators, and pneumatic drive systems. With a strong emphasis on diagnostic methods and leak detection, Samson enhances operational safety and efficiency across various industries. Their expertise in position sensors further supports advanced control mechanisms, ensuring reliable performance in demanding environments.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Samson Aktiengesellschaft
137 Patents

#21 in Frankfurt

#445 in Germany

#5,892 in the World

Frankfurt, DE
Frankfurt, Germany

Samson Aktiengesellschaft

Forward Citations = 379

93 inventors:

goldMedal Stefan Kolbenschlag (23 out of 23 patents)

silverMedal Joerg Kiesbauer (16 out of 18 patents)

bronzeMedal Lothar Kemmler (12 out of 15 patents)

4.  Andreas Sander (8 out of 8 patents)

5.  Frank Valentin-Rumpel (8 out of 8 patents)

Please report any incorrect information to [email protected]
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