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Dusseldorf, Germany

Demag Aktiengesellschaft

USPTO Granted Patents = 73

Forward Citations = 465

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96 inventors (with patents filed for the assignee):

Klaus Becker (6 out of 24 patents)

Dieter Kothe (6 out of 8 patents)

Uwe Lichtenvort (4 out of 16 patents)

4. Gero Rath (4 out of 9 patents)

5. Jorn Moslener (4 out of 5 patents)

6. Siegfried Dangeleit (4 out of 4 patents)

7. Karlheinz Langlitz (3 out of 13 patents)

8. Gunter Schmitz (3 out of 11 patents)

9. Erich Reth (3 out of 3 patents)

10. Karl E Kaufmann (3 out of 5 patents)

11. Karl Grimpe (3 out of 4 patents)

12. Eckart Schunk (2 out of 4 patents)

13. Heinz Flaig (2 out of 14 patents)

14. Werner Rahmfeld (2 out of 13 patents)

15. Hans-Joachim Schubert (2 out of 3 patents)

Core Competencies:

Continuous Casting

Torque Responsive Driver

Roll Stabilizing Apparatus

Cooling Spray Nozzle

Metal Smelting

Overload Control Coupling

Railway Maintenance Car

Hoisting Gear

Metallurgical Vat Support

Strain Gage Load Testing

Rotary Power Driver

Revolving Shears

73 patents: Sort by Forward Citations

1. 6612364 - Continuous casting method with soft reduction (2003-09-02),

2. 4300641 - Torque responsive, dual speed rotary power driver (1981-11-17),

3. 4286738 - Revolving tower support for casting ladles (1981-09-01),

4. 4273348 - Roll stabilizing apparatus for vehicles (1981-06-16),

5. 4270738 - Casting ladle mounting for steel strand casting plants (1981-06-02),

6. 4256168 - Cooling spray nozzle adjusting arrangement particularly for steel strand (1981-03-17),

7. 4252180 - Pressure relief apparatus for the supporting beam for metal strand (1981-02-24),

8. 4235623 - Continuous smelting method for ferrochrome (1980-11-25),

9. 4235082 - Detachable overload control coupling between rotating machine elements (1980-11-25),

10. 4227636 - Supporting roller stand for steel slab strand casting plants, (1980-10-14),

11. 4221171 - Direction shift control for connected vehicle undercarriages (1980-09-09),

12. 4219694 - Insulated mounting for live rails (1980-08-26),

13. 4215852 - Apparatus for locking a converter tilting gear during a blasting (1980-08-05),

14. 4214386 - Bucket wheel excavator with vibrating buckets (1980-07-29),

15. 4209681 - Pull switch (1980-06-24),

Demag Aktiengesellschaft is a leading global provider of industrial cranes, components, and services. With over 200 years of experience, Demag offers a wide range of innovative solutions for material handling and lifting tasks. Their product portfolio includes overhead cranes, jib cranes, electric chain hoists, wire rope hoists, and crane components. Demag focuses on delivering high-quality and reliable products that meet the specific needs of various industries. Their expertise in engineering and customer service ensures efficient and safe operations, enhancing productivity and profitability for their clients worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

73 Patents

#4 in Dusseldorf

#794 in Germany

#9,816 in the World

Dusseldorf, Germany

Demag Aktiengesellschaft

Forward Citations = 465

96 inventors:

Klaus Becker (6 out of 24 patents)

Dieter Kothe (6 out of 8 patents)

Uwe Lichtenvort (4 out of 16 patents)

4. Gero Rath (4 out of 9 patents)

5. Jorn Moslener (4 out of 5 patents)

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