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Düsseldorf, Germany

Feldmuhle Aktiengesellschaft

USPTO Granted Patents = 51

Trademarks = 2

Forward Citations = 1,150

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49 inventors (with patents filed for the assignee):

Hans Olapinski (12 out of 21 patents)

Ulf Dworak (12 out of 15 patents)

Dieter Fingerle (10 out of 11 patents)

4. Ulrich Krohn (10 out of 11 patents)

5. Guido Dessauer (7 out of 7 patents)

6. Kurt Riecke (5 out of 7 patents)

7. Peter Prussner (3 out of 3 patents)

8. Erhard Dorre (3 out of 4 patents)

9. Ludwig Zichner (3 out of 3 patents)

10. Harald Kraft (3 out of 3 patents)

11. Franz Wirnitzer (2 out of 3 patents)

12. Herbert Engelsberger (2 out of 3 patents)

13. Kurt Ramlow (2 out of 2 patents)

14. Ferdinand Land (2 out of 2 patents)

15. Wolfgang Barnscheidt (2 out of 4 patents)

Core Competencies:

Ceramic Frictional Elements

Sintered Ceramic

Internal Combustion Engine

Cutting Tools

Microcapsules

Thermal Insulation

Polycrystalline Silicon

De-inking Apparatus

Implantable Joints

Recording Material

High Bulk Paper

Composite Films

51 patents: Sort by Forward Citations

1. 5284813 - First sheet for copysets (1994-02-08),

2. 5032215 - Method of etching ceramic frictional or sealing elements (1991-07-16),

3. 4859650 - Pressure-sensitive recording material (1989-08-22),

4. 4842777 - Pressurized mixing injector (1989-06-27),

5. 4840154 - Tubular ceramic body for gas passages in cylinder head of internal (1989-06-20),

6. 4716869 - Valve guide for an internal combustion engine (1988-01-05),

7. 4662889 - Knee joint prosthesis (1987-05-05),

8. 4622267 - Microcapsules having capsule walls formed of aliphatic diisocyanate and (1986-11-11),

9. 4618049 - Friction partners for lubricated friction couplings (1986-10-21),

10. 4616963 - Cutting tip for cutting-tools (1986-10-14),

11. 4613308 - Jaw implant having an aperture to receive a replacement-tooth holder (1986-09-23),

12. 4601930 - Carrier film backed with composite film (1986-07-22),

13. 4595663 - Sintered ceramic shaped article wholly or predominantly of eutectic (1986-06-17),

14. 4580438 - Method and apparatus for testing the duplicating characteristics of (1986-04-08),

15. 4549930 - Uncoated paper web for printing and method for making and using same (1985-10-29),

Feldmuhle Aktiengesellschaft, based in Düsseldorf, Germany, specializes in the development and manufacturing of advanced ceramic materials. The company focuses on a diverse range of applications, including ceramic frictional elements, sintered ceramics, and thermal insulation solutions. Its expertise extends to cutting tools and microcapsules, catering to industries such as automotive engineering and manufacturing. Feldmuhle is committed to innovation in ceramic technologies, enhancing performance and efficiency across various sectors.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

51 Patents

#16 in Düsseldorf

#1,036 in Germany

#13,753 in the World

Düsseldorf, Germany

Feldmuhle Aktiengesellschaft

Forward Citations = 1,150

49 inventors:

Hans Olapinski (12 out of 21 patents)

Ulf Dworak (12 out of 15 patents)

Dieter Fingerle (10 out of 11 patents)

4. Ulrich Krohn (10 out of 11 patents)

5. Guido Dessauer (7 out of 7 patents)

Please report any incorrect information to [email protected]

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