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For the Inventor, By the Inventor

Bielefeld, Germany

Durkopp Adler Aktiengesellschaft


USPTO Granted Patents = 72

% Expired Patents = 6.9


Trademarks = 3

Forward Citations = 209

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104 inventors (with patents filed for the assignee):

goldMedal Paul Janzen (7 out of 15 patents)

silverMedal Ralf Schneuing (7 out of 7 patents)

bronzeMedal Jochen Fischer (6 out of 26 patents)

4.  Eberhard Kastrup (5 out of 9 patents)

5.  Heinz Goldbeck (5 out of 15 patents)

6.  Walter Kuhlmann (5 out of 6 patents)

7.  Christoph Heckner (4 out of 5 patents)

8.  Klaus Niesen (4 out of 4 patents)

9.  Gerhard Schilling (4 out of 6 patents)

10.  Thomas Noltge (3 out of 3 patents)

11.  Tobias Kaufhold (3 out of 4 patents)

12.  Wolfgang Bruder (3 out of 10 patents)

13.  Hans Scholl (3 out of 37 patents)

14.  Michael Klein (3 out of 3 patents)

15.  Erwin Grube (3 out of 12 patents)


Core Competencies:
Sewing Machine
Buttonhole Technology
Automatic Sewing Device
Thread-Cutting Mechanism
Looper
Conveyor System
Sewing Material Clamp
Piping Cutter
Seam Production
Hanging Conveyor
Thread Tensioning Device
Sewing Unit

72 patents:

1. D727373 - Sewing machine (2015-04-21),
2. D727372 - Sewing machine (2015-04-21),
3. 6951177 - Buttonhole sewing machine (2005-10-04),
4. 6923130 - Sewing machine (2005-08-02),
5. 6796256 - Sewing machine lighting equipment (2004-09-28),
6. 6776110 - Apparatus for sewing stitch-group seam patterns (2004-08-17),
7. 6672232 - Two-thread lock-stitch sewing machine with thread cutter (2004-01-06),
8. 6637358 - Method of sewing supplementary parts on a workpiece (2003-10-28),
9. 6564734 - Method for operating a sewing machine for joining a first part of a sewn article to a second part of a sewn article and integrating excess width at the same time (2003-05-20),
10. 6422166 - Method for operating a sewing device and sewing device for carrying out this method (2002-07-23),
11. 6237515 - Buttonhole sewing machine (2001-05-29),
12. 6220192 - Buttonhole sewing machine (2001-04-24),
13. 6205939 - Buttonhole sewing machine (2001-03-27),
14. 6178902 - Thread-cutting device for an eyelet buttonhole sewing machine (2001-01-30),
15. 6142087 - Cutting device for creating a slit opening for a buttonhole (2000-11-07),
Company Overview
Durkopp Adler Aktiengesellschaft, headquartered in Bielefeld, Germany, specializes in the development and manufacturing of advanced sewing machines and related technologies. The company is recognized for its innovative solutions in buttonhole technology, automatic sewing devices, and thread-cutting mechanisms. With a focus on enhancing efficiency and precision in the textile industry, Durkopp Adler also offers expertise in looper systems, conveyor systems, sewing material clamps, and piping cutters, catering to a diverse range of industrial applications.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

Durkopp Adler Aktiengesellschaft USPTO Patent Assignee Logo
72 Patents

#3 in Bielefeld

#798 in Germany

#10,383 in the World

Bielefeld, DE
Bielefeld, Germany

Durkopp Adler Aktiengesellschaft

Forward Citations = 209

104 inventors:

goldMedal Paul Janzen (7 out of 15 patents)

silverMedal Ralf Schneuing (7 out of 7 patents)

bronzeMedal Jochen Fischer (6 out of 26 patents)

4.  Eberhard Kastrup (5 out of 9 patents)

5.  Heinz Goldbeck (5 out of 15 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Durkopp Adler Aktiengesellschaft. Retrieved from https://idiyas.com/company/durkopp-adler-ag

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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