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Düsseldorf, Germany

Loesche Gmbh

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USPTO Granted Patents = 48

% Expired Patents = 47.9

CIPO Patents = 2

EPO Patents = 46

Trademarks = 3

Forward Citations = 142

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53 inventors (with patents filed for the assignee):

Horst Brundiek (11 out of 13 patents)

Holger Wulfert (8 out of 8 patents)

Michael Keyssner (7 out of 7 patents)

4. Thomas Letsch (4 out of 4 patents)

5. Alexander Klokow (3 out of 3 patents)

6. Joerg Langel (3 out of 3 patents)

7. Thomas Loesche (3 out of 3 patents)

8. Udo Meyer (3 out of 3 patents)

9. Franz Poeschl (3 out of 3 patents)

10. Friedrich Schmaus (3 out of 3 patents)

11. Andre Michael Baetz (3 out of 3 patents)

12. André Bätz (2 out of 2 patents)

13. Carsten Gerold (2 out of 2 patents)

14. Winfried Ruhkamp (2 out of 2 patents)

15. André Baetz (2 out of 2 patents)

Core Competencies:

Grinding Pan

Roller Mill

Milling Bowl

Magnetic Separator

Multi-Cyclone

Steel Slag Processing

Air-Swept Mill

Dynamic Classifier

Asphalt Mixture

Burner System

Comminution Process

Material Treatment

48 patents: Sort by Forward Citations

1. 12415187 - Key grinding pan segment, grinding pan segment system, and method for same (2025-09-16),

2. 12011723 - Lever system for force transmission (2024-06-18),

3. 11318477 - Magnetic separator (2022-05-03),

4. 11090656 - Milling bowl (2021-08-17),

5. 10926270 - Method for operating a multi-cyclone for the separation of fine and very fine grain as well as a multi-cyclone (2021-02-23),

6. 10703675 - Method for processing steel slag and hydraulic mineral binder (2020-07-07),

7. 10702873 - Method and air-swept vertical mill for grinding hot, wet raw material and also channel-like segment (2020-07-07),

8. 10088155 - Central burner for multi-fuel multiple lance burner system (2018-10-02),

9. 9695485 - Method for the treatment of steelwork slag and hydraulic mineral binder (2017-07-04),

10. 9643191 - Method and vertical mill for grinding material to be ground (2017-05-09),

11. 9212404 - Preparation method for stainless steel slags and steelworks slags for recovery of metal (2015-12-15),

12. 9162256 - Method for classifying a ground material-fluid mixture and mill classifier (2015-10-20),

13. 8925844 - Roller mill (2015-01-06),

14. 8905336 - Method for comminution of mill feed (2014-12-09),

15. 8882899 - Method and plant for producing asphalt mixture (2014-11-11),

Company Overview

Loesche GmbH, headquartered in Düsseldorf, Germany, specializes in the development and manufacturing of advanced grinding technology. The company is renowned for its innovative solutions in the milling of various materials, including cement and steel slag. Loesche's expertise encompasses a range of technologies such as vertical and roller mills, grinding pan segments, and multi-cyclone separation systems. With a strong focus on efficiency and sustainability, Loesche continues to lead in optimizing processes for the cement production industry and beyond.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

48 Patents

#17 in Düsseldorf

#1,108 in Germany

#14,575 in the World

Düsseldorf, Germany

Loesche Gmbh

Forward Citations = 142

53 inventors:

Horst Brundiek (11 out of 13 patents)

Holger Wulfert (8 out of 8 patents)

Michael Keyssner (7 out of 7 patents)

4. Thomas Letsch (4 out of 4 patents)

5. Alexander Klokow (3 out of 3 patents)

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

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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