For the Inventor, By the Inventor

Enter assignee name

Trodat Gmbh

USPTO Granted Patents = 55

% Expired Patents = 18.2

EPO Patents = 28

Trademarks = 17

Forward Citations = 330

Loading Chart...

Loading Chart...

29 inventors (with patents filed for the assignee):

Markus Zehetner (19 out of 19 patents)

Helmut Lindner (19 out of 19 patents)

Peter Zindl (13 out of 13 patents)

4. Konrad Riegler (13 out of 13 patents)

5. Wolfgang Pichler (6 out of 8 patents)

6. Volker Martin (5 out of 5 patents)

7. Manfred Ortner (5 out of 5 patents)

8. Ronald Kreilhuber (3 out of 3 patents)

9. Craig Petersen (3 out of 21 patents)

10. Klemens Treml (3 out of 4 patents)

11. Johann Wilflingseder (2 out of 5 patents)

12. Reinhard Leibezeder (2 out of 2 patents)

13. Jean-Philippe Pinot (2 out of 2 patents)

14. Stéphanie Verrier (2 out of 2 patents)

15. Christian Rupp (2 out of 2 patents)

Core Competencies:

Self-Inking Stamp

Stamp Pad

Engraving Method

Cutting Device

Stamp Insert

Embossing Stamp

Laser Plotter

Photopolymer Assembly

Seal Press

Ballpoint Pen

Stamping Device

Replacement Stamp Pad

55 patents: Sort by Forward Citations

1. 12661814 - Stamp with a cutting device and method for using a cutting device (2026-06-23),

2. D1112466 - Closing cap for stamps (2026-02-10),

3. D1112465 - Stamp (2026-02-10),

4. D1110403 - Stamp (2026-01-27),

5. 12202286 - Stamp and axle element for said stamp (2025-01-21),

6. D1038226 - Roller stamp (2024-08-06),

7. D1024182 - Roller stamp with knife (2024-04-23),

8. 11389897 - Method for engraving, marking and/or inscribing a workpiece using a laser plotter, and laser plotter herefor (2022-07-19),

9. 11220124 - Self-inking stamp with removable stamp pad in carrying device having handles (2022-01-11),

10. 11203216 - Stamp with pivotable stamping insert and exchangeable ink cartridge (2021-12-21),

11. 11135864 - Stamp and associated stamp pad (2021-10-05),

12. 11104168 - Stamp, an ink pad and a closure cap (2021-08-31),

13. 11090964 - Stamp and stamping insert, especially as a replacement part for a stamp (2021-08-17),

14. 10974529 - Drive unit for a band gear in an impression unit for a stamp (2021-04-13),

15. 10850544 - Method for producing a stamp impression with UV-curable ink with a preferably self-inking stamp, and stamp for this purpose (2020-12-01),

Trodat GmbH, headquartered in Wels, Austria, specializes in the development and manufacturing of innovative stamp technology. The company is renowned for its self-inking stamps, which offer convenience and efficiency for various applications. Trodat's expertise extends to a range of related products, including stamp pads, engraving methods, and embossing stamps. With a commitment to quality and precision, Trodat continues to advance its technology in the fields of cutting devices and photopolymer assembly, catering to diverse customer needs globally.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

55 Patents

#1 in Wels

#67 in Austria

#12,903 in the World

Trodat Gmbh

Forward Citations = 330

29 inventors:

Markus Zehetner (19 out of 19 patents)

Helmut Lindner (19 out of 19 patents)

Peter Zindl (13 out of 13 patents)

4. Konrad Riegler (13 out of 13 patents)

5. Wolfgang Pichler (6 out of 8 patents)

Please report any incorrect information to [email protected]

Loading…