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For the Inventor, By the Inventor

Dortmund, Germany

Wilo Gmbh


USPTO Granted Patents = 22

% Expired Patents = 4.5

Forward Citations = 335

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21 inventors (with patents filed for the assignee):

goldMedal Albert Genster (7 out of 12 patents)

silverMedal Waldemar Stephan (7 out of 11 patents)

bronzeMedal Manfred Zelder (4 out of 5 patents)

4.  Uwe Dreihaus (3 out of 4 patents)

5.  Hansjürgen Kech (3 out of 4 patents)

6.  Ingo Fabricius (2 out of 2 patents)

7.  Hansjurgen Kech (2 out of 2 patents)

8.  Wolfgang Schmidt (1 out of 6 patents)

9.  Thomas Materne (1 out of 1 patent)

10.  Steffen Katzer (1 out of 1 patent)

11.  Gerhard Hunnekuhl (1 out of 3 patents)

12.  Horst-Georg Schmalfuss (1 out of 2 patents)

13.  Stephan Schreckenberg (1 out of 1 patent)

14.  Norbert Lutkenhaus (1 out of 1 patent)

15.  Fritz Krasser (1 out of 27 patents)


22 patents:

1. 6801031 - Method and apparatus for current measurement for electronically-controlled pump (2004-10-05),
2. 6474951 - Controller for pump and valve (2002-11-05),
3. 6473562 - Method for low-speed operation of brushless DC motors (2002-10-29),
4. 6445098 - Can for a synthetic pump motor (2002-09-03),
5. 6365998 - Canned motor pump with winding carrier (2002-04-02),
6. 6342770 - Method for starting brushless DC motors (2002-01-29),
7. 6327424 - Method of and circuit for operating a motor using power transistors (2001-12-04),
8. 6276946 - Plug-in connection for electric motors (2001-08-21),
9. 6229240 - Split-tube motor (2001-05-08),
10. 6199517 - Latent heat storage system for use in a vehicle (2001-03-13),
11. 6177741 - Electric-motor wiring system (2001-01-23),
12. 6175173 - Tube pump (2001-01-16),
13. 6138618 - Radiator for a vehicle engine (2000-10-31),
14. 6091174 - Electric motor (2000-07-18),
15. 6033183 - Impeller for a rotary pump (2000-03-07),
Company Overview
Wilo GmbH, headquartered in Dortmund, Germany, is a leading manufacturer of pumps and pump systems for heating, cooling, and water supply. The company specializes in innovative solutions that enhance energy efficiency and sustainability in fluid management. Wilo's expertise spans various sectors, including building services, water management, and industrial applications. With a strong focus on research and development, Wilo is committed to advancing technologies that meet the evolving needs of its global customer base.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

22 Patents

#12 in Dortmund

#2,061 in Germany

#28,749 in the World

Dortmund, DE
Dortmund, Germany

Wilo Gmbh

Forward Citations = 335

21 inventors:

goldMedal Albert Genster (7 out of 12 patents)

silverMedal Waldemar Stephan (7 out of 11 patents)

bronzeMedal Manfred Zelder (4 out of 5 patents)

4.  Uwe Dreihaus (3 out of 4 patents)

5.  Hansjürgen Kech (3 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Wilo Gmbh. Retrieved from https://idiyas.com/company/wilo

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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