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Duesseldorf, Germany

Feldmuhle Aktiengesellschaft

USPTO Granted Patents = 51

Trademarks = 2

Forward Citations = 1,138

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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:

Pressure-Sensitive Recording Material

Ceramic Frictional Elements

Internal Combustion Engine Components

Knee Joint Prosthesis

Microcapsules

Cutting Tools

Polycrystalline Silicon

De-Inking Apparatus

Thermal Insulation Ceramics

Implantable Medical Devices

Composite Film Technology

Carbonless Copying Materials

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),

Feldmuehle Aktiengesellschaft is a German company specialized in paper manufacturing. With over 100 years of experience, the company produces high-quality white coated packaging paper, graphic paper, label paper, and barrier paper. They focus on sustainable production practices and are committed to environmental responsibility. For further information, please visit their website.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

51 Patents

#11 in Duesseldorf

#1,064 in Germany

#13,365 in the World

Duesseldorf, Germany

Feldmuhle Aktiengesellschaft

Forward Citations = 1,138

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)

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