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Gerlafingen, Switzerland

Von Roll Ag

USPTO Granted Patents = 65

Forward Citations = 658

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63 inventors (with patents filed for the assignee):

Hansruedi Spiess (9 out of 9 patents)

Francois Galvanetto (9 out of 9 patents)

Hans Ruegg (5 out of 18 patents)

4. Werner Sturm (5 out of 9 patents)

5. Bruno Andreoli (4 out of 5 patents)

6. Bernhard Bergmann (3 out of 4 patents)

7. Gerd-Peter Gehrmann (3 out of 3 patents)

8. Derek Ferns (2 out of 4 patents)

9. Rene Vock (2 out of 2 patents)

10. Peter Spiegel (2 out of 2 patents)

11. Robert J Hafeli (2 out of 4 patents)

12. Ernst Egli (2 out of 3 patents)

13. Walter Tschantre (2 out of 2 patents)

14. Nino Bombelli (2 out of 3 patents)

15. Max Misteli (2 out of 2 patents)

Core Competencies:

Flue Gas Treatment

Refuse Incineration

Sewage Sludge Processing

Thermal Treatment

Waste Management

Composting

Electrically Weldable

Filter Press

Ground Openings

Incineration Residues

Hydraulic Equipment

Metal Casting

65 patents: Sort by Forward Citations

1. 5501161 - Process for the thermal treatment of solids which arise in the (1996-03-26),

2. 5387407 - Process for the recovery of ammonia from flue gases (1995-02-07),

3. 5367116 - Process for the disposal of flue gas residues (1994-11-22),

4. 5340232 - Manhole cover (1994-08-23),

5. 5246578 - Filter press and cleaning means therefor (1993-09-21),

6. 5238384 - Apparatus for producing a composite pipe in a rotating drum (1993-08-24),

7. 5230293 - Method and apparatus for controlling a refuse incineration plant (1993-07-27),

8. 5160213 - Covering for a ground opening (1992-11-03),

9. 5071177 - Locking device for the positive holding of a cover or grate in a frame (1991-12-10),

10. 5056955 - Locking device for coverings for manholes and other ground openings (1991-10-15),

11. 5045292 - Process for the removal of nitric oxides from flue gases (1991-09-03),

12. 4952094 - Ground water drain (1990-08-28),

13. 4925337 - Manhole covering (1990-05-15),

14. 4909664 - Arrangement for draining liquid collecting on a ground surface (1990-03-20),

15. 4909660 - Grating with a locking mechanism (1990-03-20),

Company Overview

Von Roll AG, headquartered in Gerlafingen, Switzerland, specializes in advanced waste management technologies. The company focuses on developing solutions for flue gas treatment, refuse incineration, sewage sludge processing, and thermal treatment. With a commitment to sustainable practices, Von Roll also addresses composting and waste management challenges through innovative technologies. Their expertise in electrically weldable materials and filter press systems further enhances their capabilities in providing efficient waste processing solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

65 Patents

#1 in Gerlafingen

#234 in Switzerland

#11,344 in the World

Gerlafingen, Switzerland

Von Roll Ag

Forward Citations = 658

63 inventors:

Hansruedi Spiess (9 out of 9 patents)

Francois Galvanetto (9 out of 9 patents)

Hans Ruegg (5 out of 18 patents)

4. Werner Sturm (5 out of 9 patents)

5. Bruno Andreoli (4 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Von Roll Ag. Retrieved from https://idiyas.com/company/von-roll-ag

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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