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Augsburg, Germany

Sigri Elektrographit Gmbh

USPTO Granted Patents = 23

Forward Citations = 264

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37 inventors (with patents filed for the assignee):

Harald Tillmanns (4 out of 4 patents)

Gerhard Pietzka (4 out of 4 patents)

Franz Brandmair (3 out of 3 patents)

4. Dietmar Honig (3 out of 3 patents)

5. Ottmar Rubisch (3 out of 3 patents)

6. Adolf Swozil (2 out of 7 patents)

7. Ingo Romey (2 out of 24 patents)

8. Hans Jonas (2 out of 2 patents)

9. Alfred Hirschvogel (2 out of 2 patents)

10. Gunter Bewer (2 out of 2 patents)

11. Dieter Lieberoth (2 out of 2 patents)

12. Eckhard Schulz (1 out of 2 patents)

13. Gerhard Ullmann (1 out of 6 patents)

14. Hans Herbst (1 out of 3 patents)

15. Horst Boder (1 out of 1 patent)

23 patents: Sort by Forward Citations

1. 4507860 - Production line for graphite nipples (1985-04-02),

2. 4482314 - Method for heating carbon blanks (1984-11-13),

3. 4474233 - Tube bundle heat exchanger (1984-10-02),

4. 4431686 - Method for coating a porous electrode (1984-02-14),

5. 4425820 - Connecting rod of a composite material and method for manufacturing the (1984-01-17),

6. 4369683 - Discharging device for an extrusion press (1983-01-25),

7. 4366191 - Method of increasing the strength of carbon and graphite members (1982-12-28),

8. 4296177 - Flexible graphite sheet, material or layer containing metal molybdate (1981-10-20),

9. 4289604 - Method of producing an isotropic coke (1981-09-15),

10. 4288353 - Carbon bearing contact paste (1981-09-08),

11. 4252629 - Electrode for electrochemical processes especially electrowinning and (1981-02-24),

12. 4219405 - Method of continuously producing coke (1980-08-26),

13. 4197149 - Method for joining together shaped bodies of polytetrafluoroethylene (1980-04-08),

14. 4179289 - Electrode for electrochemical processes and method of producing the same (1979-12-18),

15. 4137150 - Method for the manufacture of a coal-tar pitch coke (1979-01-30),

Sigri Elektrographit GmbH is a leading manufacturer of graphite products, serving a wide range of industries including automotive, aerospace, and electronics. With a strong focus on quality and innovation, Sigri Elektrographit GmbH offers a comprehensive range of graphite materials and solutions to meet the needs of its customers worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

23 Patents

#13 in Meitingen b. Augsburg

#1,995 in DT

#26,773 in the World

Augsburg, Germany

Sigri Elektrographit Gmbh

Forward Citations = 264

37 inventors:

Harald Tillmanns (4 out of 4 patents)

Gerhard Pietzka (4 out of 4 patents)

Franz Brandmair (3 out of 3 patents)

4. Dietmar Honig (3 out of 3 patents)

5. Ottmar Rubisch (3 out of 3 patents)

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