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Wattwil, Switzerland

Optrel Ag

USPTO Granted Patents = 18

EPO Patents = 2

Trademarks = 1

Forward Citations = 339

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20 inventors (with patents filed for the assignee):

Leo Keller (3 out of 3 patents)

Lukas Steinemann (3 out of 3 patents)

Emil Ackermann (2 out of 3 patents)

4. Rupert Fuerthbauer (2 out of 2 patents)

5. Ramon Hofer-Kraner (1 out of 4 patents)

6. Tobias Gerfin (1 out of 1 patent)

7. Kaspar Cottier (1 out of 1 patent)

8. Ronald Schindele (1 out of 1 patent)

9. Peter Hones (1 out of 1 patent)

10. Rico Sonderegger (1 out of 1 patent)

11. Phillip Syré (1 out of 1 patent)

12. Sven T Lagerwall (1 out of 19 patents)

13. Christoph Lutz (1 out of 1 patent)

14. Francesco Del Bon (1 out of 1 patent)

15. Franco Del Bon (1 out of 13 patents)

18 patents: Sort by Forward Citations

1. 9610198 - Protection device for a welder (2017-04-04),

2. RE45677 - Anti-glare protection device (2015-09-28),

3. 8181270 - Anti-glare protection device (2012-05-22),

4. 7800034 - Dazzle protection unit for a portable dazzle protection device including a light capturing element guiding light to at least one sensor (2010-09-21),

5. 7161116 - Welding protective mask with illumination equipment (2007-01-09),

6. 6941577 - Antiglare device for welding protective masks (2005-09-13),

7. 6891681 - Anti-glare protection device (2005-05-10),

8. 6887531 - Glare protection device (2005-05-03),

9. 6796652 - Glare-protection device with a screened evaluation circuit (2004-09-28),

10. 6675800 - Emergency flight safety device (2004-01-13),

11. 6270223 - Active electro-optical filter device and glare-protection device (2001-08-07),

12. 5793449 - Protective device (1998-08-11),

13. 5571217 - Protective assembly for the protection of the human head (1996-11-05),

14. 5510609 - Electrically controllable optical filter element (1996-04-23),

15. D365666 - Welding helmet (1995-12-26),

Optrel AG is a leading manufacturer of active eye protection products for industries such as welding, grinding, and healthcare. Their products include auto-darkening welding helmets, respiratory protection systems, and safety eyewear. With a focus on innovation and quality, Optrel AG is committed to providing customers with advanced solutions that enhance safety and productivity in the workplace.

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

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USPTO Data Jan 1 1976 - Dec 16 2025

18 Patents

#2 in Wattwil

#662 in Switzerland

#33,166 in the World

Wattwil, Switzerland

Optrel Ag

Forward Citations = 339

20 inventors:

Leo Keller (3 out of 3 patents)

Lukas Steinemann (3 out of 3 patents)

Emil Ackermann (2 out of 3 patents)

4. Rupert Fuerthbauer (2 out of 2 patents)

5. Ramon Hofer-Kraner (1 out of 4 patents)

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