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Appenzell, Switzerland

Optrel Holding Ag

USPTO Granted Patents = 13

EPO Patents = 15

Trademarks = 2

Forward Citations = 9

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23 inventors (with patents filed for the assignee):

Jonathan Heusser (5 out of 5 patents)

Martin Esposito (4 out of 4 patents)

Daniel Bloechlinger (4 out of 4 patents)

4. Ramon Hofer Kraner (3 out of 3 patents)

5. Ramon Hofer-Kraner (3 out of 4 patents)

6. Leo Keller (2 out of 2 patents)

7. Robert Buechel (2 out of 2 patents)

8. Arno Lenzi (1 out of 25 patents)

9. David Bischof (1 out of 2 patents)

10. Markus Michler (1 out of 4 patents)

11. Tindaro Pittorino (1 out of 1 patent)

12. Olaf Schreiber (1 out of 1 patent)

13. Daniel Iranyi (1 out of 22 patents)

14. Uwe Werner (1 out of 21 patents)

15. Yang Sheng (1 out of 1 patent)

13 patents: Sort by Forward Citations

1. 12696948 - Head protection device with holding unit and protection unit (2026-08-04),

2. 12613434 - Goggles device, goggles, method for operation (2026-04-28),

3. 12017097 - Blower device for a respiratory protection system (2024-06-25),

4. 11617906 - Mouth protection device for a respiratory protection system (2023-04-04),

5. 11061262 - Protective cartridge and method with a protective cartridge (2021-07-13),

6. 10926348 - Detection device for an active glare protection device (2021-02-23),

7. 10736782 - Face protector (2020-08-11),

8. 10690942 - Sunglasses with a sun protection filter (2020-06-23),

9. 10429680 - Optical glare protection filter (2019-10-01),

10. 10401651 - Protection device (2019-09-03),

11. 10274753 - Sun protection device (2019-04-30),

12. 10251786 - Method and apparatus for controlling opening of an auto-darkening filter in an eye protection device (2019-04-09),

13. 10098788 - Electro-optical glare-protection filter with a liquid crystal cell being a fringe-field switching cell for a welder protection device (2018-10-16),

Optrel is a leading Swiss company specialized in developing, manufacturing, and distributing innovative industrial eye protection products. With a focus on quality, comfort, and innovation, Optrel is dedicated to providing superior eye protection solutions to customers worldwide. The company offers a wide range of cutting-edge welding helmets, respiratory protection equipment, and safety goggles designed to meet the highest standards of performance and safety.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

13 Patents

#2 in Appenzell

#878 in Switzerland

#44,950 in the World

Appenzell, Switzerland

Optrel Holding Ag

Forward Citations = 9

23 inventors:

Jonathan Heusser (5 out of 5 patents)

Martin Esposito (4 out of 4 patents)

Daniel Bloechlinger (4 out of 4 patents)

4. Ramon Hofer Kraner (3 out of 3 patents)

5. Ramon Hofer-Kraner (3 out of 4 patents)

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