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Frankfurt, Germany

Deutsche Carbone Ag

USPTO Granted Patents = 16

% Expired Patents = 6.3

Forward Citations = 106

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29 inventors (with patents filed for the assignee):

Hartmut E Bruschke (4 out of 9 patents)

Wilhelm Latz (3 out of 3 patents)

Hermann A Steinhauser (3 out of 4 patents)

4. Conrad H Reynvaan (3 out of 4 patents)

5. Arwed Uecker (2 out of 4 patents)

6. Jurgen Spangenberg (2 out of 2 patents)

7. Hartmut E Brueschke (2 out of 4 patents)

8. Guido Ellinghorst (2 out of 4 patents)

9. Quang T Nguyen (2 out of 2 patents)

10. Walter H Schneider (2 out of 4 patents)

11. Andreas Hübner (1 out of 2 patents)

12. Jürgen Spangenberg (1 out of 1 patent)

13. Emmanuel Joly (1 out of 1 patent)

14. Ulrich Sussel (1 out of 1 patent)

15. Sevket Harmanci (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 7449144 - Process for manufacturing a sliding contact piece for medium to high current densities (2008-11-11),

2. 6278215 - Carbon brush with at least one pressed-in stranded copper wire (2001-08-21),

3. 6268679 - Carbon brush for an electrical machine in a vehicle (2001-07-31),

4. 6123252 - Process for fixing a graphite-rich material onto a metallic body (2000-09-26),

5. 6091178 - Carbon brush for electric fuel pumps (2000-07-18),

6. 5700374 - Pervaporation membranes and use thereof (1997-12-23),

7. 5626803 - Process for economical manufacture of brushes of predetermined anisotropy (1997-05-06),

8. 5611930 - Cellulose ester blend membranes, process for making same and their use (1997-03-18),

9. 5590708 - Heat exchanger block (1997-01-07),

10. 5558776 - Process for the manufacture of a composite plasma membrane and use (1996-09-24),

11. 5512179 - Membrane process for separation of fluid mixtures (1996-04-30),

12. 5385647 - Process for the reduction of the alcohol content of alcoholic beverages (1995-01-31),

13. 5334314 - Composition membrane for separating water from fluids containing organic (1994-08-02),

14. 5270504 - Sliding contact member for high currrent densities (1993-12-14),

15. 5164424 - Polymer having a betaine structure, solution diffusion membrane, process (1992-11-17),

Deutsche Carbone AG, based in Frankfurt, specializes in advanced carbon materials and technologies. The company focuses on the development and manufacturing of high-performance carbon products that cater to various industries, including energy, automotive, and electronics. With a commitment to innovation, Deutsche Carbone AG engages in research aimed at enhancing the properties and applications of carbon materials, contributing to sustainable solutions and technological advancements in multiple sectors.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

16 Patents

#51 in Frankfurt

#2,620 in Germany

#37,766 in the World

Frankfurt, Germany

Deutsche Carbone Ag

Forward Citations = 106

29 inventors:

Hartmut E Bruschke (4 out of 9 patents)

Wilhelm Latz (3 out of 3 patents)

Hermann A Steinhauser (3 out of 4 patents)

4. Conrad H Reynvaan (3 out of 4 patents)

5. Arwed Uecker (2 out of 4 patents)

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