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For the Inventor, By the Inventor

Witten, Germany

Ruhrpumpen Gmbh


USPTO Granted Patents = 18

% Expired Patents = 27.8



Trademarks = 4

Forward Citations = 47

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16 inventors (with patents filed for the assignee):

goldMedal Wolfgang Paul (14 out of 14 patents)

silverMedal Dirk Heidemann (9 out of 9 patents)

bronzeMedal Kay Simon (6 out of 6 patents)

4.  Maciej Barcikowski (6 out of 6 patents)

5.  Günther Schneider (4 out of 4 patents)

6.  Michael Westib (4 out of 4 patents)

7.  Andreas Wupper (3 out of 3 patents)

8.  Dirk Koep (3 out of 3 patents)

9.  Thomas Graefenstein (3 out of 3 patents)

10.  Steffen Krenzer (3 out of 3 patents)

11.  Thomas Hoppe (2 out of 2 patents)

12.  Mathias Ozimek (2 out of 2 patents)

13.  Christian Jussen (1 out of 1 patent)

14.  Katja Wischmann (1 out of 1 patent)

15.  Hauke Jasper (1 out of 1 patent)


18 patents:

1. 9796105 - Tool for crushing coke in drums by means of high-pressure water jets (2017-10-24),
2. 9617999 - Double-wall containment shroud of a magnetic coupling, in particular a magnetic coupling pump (2017-04-11),
3. 9528390 - Hydrodynamic sliding bearing, in particular of a magnetic coupling pump (2016-12-27),
4. 9469811 - Tool for crushing coke (2016-10-18),
5. 9057403 - Method for mounting a hydrodynamic sliding bearing and hydrodynamic sliding bearing, in particular of a magnetic coupling pump (2015-06-16),
6. 8956067 - Split case of a magnetic coupling, in particular of a magnetic coupling pump (2015-02-17),
7. 8955618 - Tool for crushing coke (2015-02-17),
8. 8439127 - Drive device for a boring bar (2013-05-14),
9. 8382960 - Arrangement for guiding a drill stem of a decoking tool (2013-02-26),
10. 8220323 - Freefall arrestor (2012-07-17),
11. 8074746 - Tool for crushing coke (2011-12-13),
12. 8074745 - Tool for crushing coke (2011-12-13),
13. 8066334 - Tool for cutting coke and other hard materials in drums (2011-11-29),
14. 8024984 - Device and method for testing decoking tools (2011-09-27),
15. 8002204 - Decoking tool (2011-08-23),
Ruhrpumpen GmbH is one of the leading global manufacturers of centrifugal and reciprocating pumps with over 60 years of experience. They offer a wide range of high-quality pumps for various industrial applications such as oil and gas, power generation, water treatment, and more. With a strong commitment to innovation and customer satisfaction, Ruhrpumpen GmbH continues to deliver reliable pumping solutions worldwide.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

18 Patents

#3 in Witten

#2,390 in Germany

#34,146 in the World

Witten, DE
Witten, Germany

Ruhrpumpen Gmbh

Forward Citations = 47

16 inventors:

goldMedal Wolfgang Paul (14 out of 14 patents)

silverMedal Dirk Heidemann (9 out of 9 patents)

bronzeMedal Kay Simon (6 out of 6 patents)

4.  Maciej Barcikowski (6 out of 6 patents)

5.  Günther Schneider (4 out of 4 patents)

Please report any incorrect information to [email protected]
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