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Gerlafingen, Switzerland

Von Roll Ag

USPTO Granted Patents = 65

Forward Citations = 652

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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:

Thermal Treatment

Flue Gas Recovery

Waste Incineration

Manhole Covers

Composite Pipe Production

Ground Water Drainage

Electrically Weldable Components

Incineration Residue Management

Reinforcing Steel Production

Filter Press Technology

Combustion Furnaces

Sewage Sludge Processing

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),

Von Roll AG is a global provider of electrical insulation products, systems, and services. With over 100 years of experience, the company specializes in manufacturing and developing innovative solutions for the electrical industry. Their products include insulation materials, composites, and resin systems that are used in a wide range of applications. Von Roll AG operates in various markets such as energy, automotive, transportation, and electronics, serving customers worldwide with a commitment to quality and sustainability.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

65 Patents

#1 in Gerlafingen

#217 in Switzerland

#10,867 in the World

Gerlafingen, Switzerland

Von Roll Ag

Forward Citations = 652

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)

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