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Zurich, Switzerland

Von Roll Umwelttechnik Ag

USPTO Granted Patents = 27

Trademarks = 1

Forward Citations = 117

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39 inventors (with patents filed for the assignee):

Hans Ruegg (7 out of 18 patents)

Felix Koller (3 out of 4 patents)

Josef Mercx (3 out of 4 patents)

4. Ruedi Frey (3 out of 4 patents)

5. Rudolf Frey (3 out of 4 patents)

6. Norbert Kiethe (3 out of 3 patents)

7. Werner Brennwald (2 out of 8 patents)

8. Anton Mayer (2 out of 3 patents)

9. Erich Vogler (2 out of 2 patents)

10. Klaus Zoss (2 out of 2 patents)

11. Stefan Forsberg (2 out of 2 patents)

12. Alfred Edlinger (2 out of 33 patents)

13. Peter C Straub (2 out of 2 patents)

14. Theo Rey (2 out of 4 patents)

15. Rolf Hauser (2 out of 2 patents)

27 patents: Sort by Forward Citations

1. 8156819 - Method for checking a knocking device (2012-04-17),

2. 7857889 - Method for purifying exhaust gases from a waste incineration plant (2010-12-28),

3. 7845291 - Control method for waste incineration plants with auxiliary burner operation (2010-12-07),

4. 7595033 - Regeneration of nt-scr catalysts (2009-09-29),

5. 7424856 - Grate element for a grate of a waste combustion installation (2008-09-16),

6. 7343866 - Waste-throughput limiting control (2008-03-18),

7. 6938561 - Device for producing a rotating flow (2005-09-06),

8. 6752093 - Method for operating a refuse incineration plant (2004-06-22),

9. 6655955 - Coolable arched roof (2003-12-02),

10. 6513445 - Plant and grate block for the thermal treatment of waste materials (2003-02-04),

11. 6425336 - Grate trough as part of a grate for a plant for the thermal treatment of waste (2002-07-30),

12. 6382112 - Chute of a feed system for a refuse incineration plant having a cutting apparatus (2002-05-07),

13. 6290752 - Device and process for adsorption or chemisorption of gaseous constituents from a gas flow (2001-09-18),

14. 6237808 - Method and device for emptying a drum filled with solids (2001-05-29),

15. 6117405 - Process for removing nitrogen oxides from flue gases (2000-09-12),

Von Roll Umwelttechnik AG is a leading provider of environmental technology solutions. We specialize in the development and manufacturing of innovative equipment for waste treatment and for generating energy from waste. With our state-of-the-art technology and expertise, we help our customers around the world to achieve sustainable and eco-friendly waste management solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

27 Patents

#37 in Zurich

#462 in Switzerland

#23,316 in the World

Zurich, Switzerland

Von Roll Umwelttechnik Ag

Forward Citations = 117

39 inventors:

Hans Ruegg (7 out of 18 patents)

Felix Koller (3 out of 4 patents)

Josef Mercx (3 out of 4 patents)

4. Ruedi Frey (3 out of 4 patents)

5. Rudolf Frey (3 out of 4 patents)

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