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Oberhausen, Germany

Man Gutehoffnungshutte Aktiengesellschaft

USPTO Granted Patents = 70

CIPO Patents = 1

Forward Citations = 469

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96 inventors (with patents filed for the assignee):

Wilfried Blotenberg (8 out of 26 patents)

Hartmut Grathoff (5 out of 12 patents)

Jurgen R Heering (5 out of 7 patents)

4. Klaus Kohnen (4 out of 17 patents)

5. Rainer Schmidt (4 out of 5 patents)

6. Walter Kinzel (4 out of 5 patents)

7. Emil Aschenbruck (3 out of 23 patents)

8. Joachim Kotzur (3 out of 16 patents)

9. Frohmut Vollhardt (3 out of 21 patents)

10. Bruno Kammerling (3 out of 8 patents)

11. Wilhelm Franken (3 out of 4 patents)

12. Dieter Pohe (3 out of 3 patents)

13. Klaus D Mohr (3 out of 3 patents)

14. Kurt Bauermeister (3 out of 3 patents)

15. Hans-Jurgen Karcher (3 out of 3 patents)

Core Competencies:

Synthesis Gas Heat Exchanger

Refractory Lining

Heat Insulating Lining

Torque Motor

Dynamic-Type Compressors

Geared Multishaft Turbocompressor

Flue Gas Filtration

Direct Current Arc Furnace

Pneumatic Floor Supports

Cargo Pickup Mechanism

High Temperature Gas Tubular Heat Exchanger

Continuous Operation Extraction Machinery

70 patents: Sort by Forward Citations

1. 6051195 - Synthesis gas heat exchanger unit (2000-04-18),

2. 5873329 - Refractory lining in the transition of a gasifier to the waste heat (1999-02-23),

3. 5826335 - Process for repairing heat exchanger tubes in tube apparatus (1998-10-27),

4. 5810075 - Heat-insulating lining on heat exchanger surfaces (1998-09-22),

5. 5808395 - Torque motor (1998-09-15),

6. 5806299 - Process and apparatus for quickly switching over from premix combustion (1998-09-15),

7. 5802098 - Melting vessel with fastening, mounting and tilting devices (1998-09-01),

8. 5794688 - Heat insulation and corrosion protection of the inner vessel wall of a (1998-08-18),

9. 5765991 - Process and device for operating dynamic-type compressors with (1998-06-16),

10. 5762468 - Process for protecting a turbocompressor from operation in the unstable (1998-06-09),

11. 5732430 - Device for assembling and laying track support and launching support (1998-03-31),

12. 5695327 - Sealing, mounting and drive of the rotors of a dry-running screw (1997-12-09),

13. 5678806 - Plate coolers for shaft furnaces (1997-10-21),

14. 5673901 - Device for transporting molten metal in the pouring bay of a shaft (1997-10-07),

15. 5650119 - Cooling plate for a blast furnance (1997-07-22),

Man Gutehoffnungshutte Aktiengesellschaft, commonly known as Mannesmann AG, is a German engineering conglomerate. It was founded in 1890 and is headquartered in Düsseldorf, Germany. Mannesmann AG operates in various sectors including steel, telecommunications, engineering, automotive, and more. With its rich history and expertise, the company has established a global presence and strives to meet the needs of its customers with innovative solutions.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

70 Patents

#1 in

#850 in Germany

#10,342 in the World

Oberhausen, Germany

Man Gutehoffnungshutte Aktiengesellschaft

Forward Citations = 469

96 inventors:

Wilfried Blotenberg (8 out of 26 patents)

Hartmut Grathoff (5 out of 12 patents)

Jurgen R Heering (5 out of 7 patents)

4. Klaus Kohnen (4 out of 17 patents)

5. Rainer Schmidt (4 out of 5 patents)

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