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Frankfurt/Main, Germany

Metallgesellschaft Aktiengesellschaft

USPTO Granted Patents = 642

CIPO Patents = 1

Trademarks = 10

Forward Citations = 5,621

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843 inventors (with patents filed for the assignee):

Martin Hirsch (36 out of 50 patents)

Ulrich Heinrich Sander (21 out of 21 patents)

Karl Lohrberg (20 out of 20 patents)

4. Paul Rudolph (20 out of 20 patents)

5. Lothar Reh (18 out of 23 patents)

6. Harry Serbent (18 out of 18 patents)

7. Wolfram Schnabel (18 out of 18 patents)

8. Manfred Kriebel (16 out of 16 patents)

9. Hugo Grimm (15 out of 15 patents)

10. Hans-Martin Stonner (15 out of 15 patents)

11. Wolfgang Fennemann (14 out of 14 patents)

12. Karl-Heinz Dorr (14 out of 14 patents)

13. Heinz Jockel (14 out of 14 patents)

14. Roland Rammler (14 out of 15 patents)

15. Alexander Doerges (13 out of 13 patents)

Core Competencies:

Slag Crusher

Gasification Reactor

Hot-Melt Adhesive

Iron Carbide Production

Sulfuric Acid Production

Electrochemical Cell

Fluidized Bed Combustion

Anti-Corrosive Pigments

Metal Surface Phosphatizing

Copper Coatings Deposition

High-Temperature Distillation

Granular Sponge Iron

642 patents: Sort by Forward Citations

1. 7322538 - Slag crusher (2008-01-29),

2. 7258841 - Reactor for gasifying granular fuels that form a fixed bed (2007-08-21),

3. 6709750 - Hot-melt adhesive for sealing the edge of laminated glass (2004-03-23),

4. 6688474 - Process for removing relatively coarse-grained solids from a stationary fluidized bed (2004-02-10),

5. 6663696 - Earth conductor for earthing systems (2003-12-16),

6. 6652267 - Burner for the partial oxidation of liquid fuels which contain carbon (2003-11-25),

7. 6627172 - Process for preparing sulphuric acid from gases containing SO3 and gaseous nitrosylsulphuric acid (2003-09-30),

8. 6627171 - Method for producing iron carbide from granulated sponge iron (2003-09-30),

9. 6599374 - Method for producing a mixture of iron carbide and granular, directly reduced iron (2003-07-29),

10. 6599351 - Anti-corrosive white pigments and method for producing the same (2003-07-29),

11. 6596061 - Inorganic anti-corrosive pigments and method for the production thereof (2003-07-22),

12. 6524362 - Method of melting fine grained direct reduced iron in an electric arc furnace (2003-02-25),

13. 6517613 - Tank for containing granular absorbers for cleaning gases (2003-02-11),

14. 6506516 - Lithium bisoxalatoborate, the production thereof and its use as a conducting salt (2003-01-14),

15. 6500402 - Catalyst for oxidizing SO2 to SO3 and utilization of the catalyst in a method for producing sulfuric acid (2002-12-31),

Metallgesellschaft Aktiengesellschaft, also known as MG, is a German industrial conglomerate specializing in metal trading, engineering, and investment banking services. With over a century of expertise, MG has established itself as a leading player in the global metal industry, offering an extensive range of high-quality products and tailored solutions for diverse sectors. The company's commitment to sustainability, innovation, and customer satisfaction has contributed to its long-standing success and reputation. For more information about Metallgesellschaft Aktiengesellschaft and its comprehensive offerings, please visit their official website.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

642 Patents

#1 in Frankfurt/Main

#83 in Germany

#1,500 in the World

Frankfurt/Main, Germany

Metallgesellschaft Aktiengesellschaft

Forward Citations = 5,621

843 inventors:

Martin Hirsch (36 out of 50 patents)

Ulrich Heinrich Sander (21 out of 21 patents)

Karl Lohrberg (20 out of 20 patents)

4. Paul Rudolph (20 out of 20 patents)

5. Lothar Reh (18 out of 23 patents)

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