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Cologne, Germany

Khd Humboldt Wedag Gmbh

USPTO Granted Patents = 49

% Expired Patents = 51.0

CIPO Patents = 3

EPO Patents = 69

Trademarks = 15

Forward Citations = 148

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50 inventors (with patents filed for the assignee):

Meinhard Frangenberg (18 out of 22 patents)

Christian Splinter (10 out of 12 patents)

Alexander Hagedorn (9 out of 15 patents)

4. Dieter Brendler (6 out of 6 patents)

5. Karl Schinke (6 out of 6 patents)

6. Heiko Schuermann (4 out of 4 patents)

7. Matthias Mersmann (4 out of 5 patents)

8. Marc Feiss (3 out of 3 patents)

9. Siegfried Strasser (3 out of 16 patents)

10. Alexander Knoch (3 out of 3 patents)

11. Norbert Streit (2 out of 4 patents)

12. Heiko Schürmann (2 out of 2 patents)

13. Stefan Seemann (2 out of 2 patents)

14. Robert Mathai (2 out of 2 patents)

15. Ernst Schröder (2 out of 2 patents)

Core Competencies:

Clay Calcination

Raw Meal Delivery

Cement Clinker

Denitrification

Roller Press

Grinding Mill

Rotary Furnace

Cooling Grate

Comminution

Heat Recovery

Bulk Material Cooler

49 patents: Sort by Forward Citations

1. 12723001 - Multi-stage clay calcination method for controlling product color (2026-09-01),

2. 12698938 - Raw meal delivery device (2026-08-04),

3. 12103047 - Cyclone with rotating rod basket (2024-10-01),

4. 10786815 - Rotor for a disintegration device (2020-09-29),

5. 10719055 - Control device with adjustable control behavior (2020-07-21),

6. 10479727 - Method for operating a plant for producing cement (2019-11-19),

7. 10260809 - Method and plant for denitrifying bypass gases in a multi-stage system of mixing chambers in a plant for producing cement clinker (2019-04-16),

8. 10159984 - Method for making recesses in a rolling roller (2018-12-25),

9. 10145616 - Method and system for the denitrification of flue gases by means of SNCR (selective non-catalytic reduction) and downstream catalyst for ammonia decomposition (2018-12-04),

10. 9975806 - Plant for producing cement clinker with gasification reactor for difficult fuels (2018-05-22),

11. 9914664 - Method for denitrification of bypass exhaust gases in a plant for producing cement clinker (2018-03-13),

12. 9725362 - Method for using the waste heat from a plant for producing cement and plant for producing cement (2017-08-08),

13. 9649678 - Closing element for a rolling press frame (2017-05-16),

14. 9586260 - Process for producing a casing for a roller press (2017-03-07),

15. 9498779 - Method for regulating the roll gap pressure of a roller press (2016-11-22),

Company Overview

KHD Humboldt Wedag GmbH, headquartered in Cologne, Germany, specializes in the development and manufacturing of equipment and technologies for the cement industry. The company is recognized for its innovative solutions in cement clinker production, including roller press technology and advanced grinding mill design. KHD also focuses on denitrification processes, rotary furnace burners, and waste heat recovery systems, contributing to enhanced efficiency and sustainability in cement production. Its expertise extends to cooling grate regulation and comminution techniques, positioning KHD as a leader in the sector.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

49 Patents

#15 in Cologne

#1,078 in Germany

#14,293 in the World

Cologne, Germany

Khd Humboldt Wedag Gmbh

Forward Citations = 148

50 inventors:

Meinhard Frangenberg (18 out of 22 patents)

Christian Splinter (10 out of 12 patents)

Alexander Hagedorn (9 out of 15 patents)

4. Dieter Brendler (6 out of 6 patents)

5. Karl Schinke (6 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Khd Humboldt Wedag Gmbh. Retrieved from https://idiyas.com/company/khd-humboldt-wedag

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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