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Trodat Gmbh

USPTO Granted Patents = 55

% Expired Patents = 18.2

EPO Patents = 28

Trademarks = 17

Forward Citations = 330

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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 Stamps

Laser Engraving

Stamp Pads

Embossing Stamps

Ink Cartridges

Photopolymer Assembly

Stamping Inserts

Multi-Color Ink Stamps

Seal Press

Hand Stamps

Drive Units

Replacement Parts

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 is a renowned manufacturer of stamps, specializing in self-inking stamps, date stamps, and other custom stamps. With a history of over a century, Trodat has become a market leader in the stamp industry. The company prides itself on producing high-quality and durable products and continuously innovates to meet the evolving needs of its customers. Trodat's commitment to sustainability is demonstrated through their eco-friendly product range and sustainable production practices.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

55 Patents

#1 in Wels

#67 in Austria

#12,881 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)

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