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Ravensburg, Germany

Sulzer-Escher Wyss Limited

USPTO Granted Patents = 111

Trademarks = 3

Forward Citations = 1,022

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112 inventors (with patents filed for the assignee):

Herbert Holik (18 out of 34 patents)

Alfred Bubik (13 out of 40 patents)

Hans K Dahl (13 out of 26 patents)

4. Wolf-Gunter Stotz (11 out of 30 patents)

5. Otto Hildebrand (9 out of 9 patents)

6. Rudiger Kurtz (8 out of 27 patents)

7. Josef Schneid (7 out of 23 patents)

8. Eugen Schnyder (7 out of 18 patents)

9. Peter Mirsberger (6 out of 16 patents)

10. Christoph Link (6 out of 19 patents)

11. Harald Hess (6 out of 24 patents)

12. Elmer Weisshuhn (6 out of 10 patents)

13. Karl Muller (6 out of 6 patents)

14. Reinhard Pinter (5 out of 12 patents)

15. Rudolf Munch (4 out of 7 patents)

Core Competencies:

Flotation

Dewatering

Calendering

Paper Webs

Fiber Suspensions

Rolls

Screw Compressor

Pressure Pulsations

Thickness Control

Winding Device

Gypsum Calcination

Heat Treatment

111 patents: Sort by Forward Citations

1. 5916446 - Process and apparatus for the separation of solid matter via flotation (1999-06-29),

2. 5785815 - Process for damping pressure pulsations and apparatus for performing the (1998-07-28),

3. 5765392 - Screw compressor apparatus for refrigerants with oils soluble in (1998-06-16),

4. 5690812 - Process and apparatus for the separation of solid matter via flotation (1997-11-25),

5. 5673616 - Apparatus for influencing the thickness and gloss and/or smoothness in (1997-10-07),

6. 5635032 - Double wire former (1997-06-03),

7. 5566903 - Roller mill for milling suspended fibrous material (1996-10-22),

8. 5556511 - Process for drying paper webs (1996-09-17),

9. 5551171 - Winding device for a fiber web (1996-09-03),

10. 5533443 - Method for influencing the thickness and gloss and/or smoothness in the (1996-07-09),

11. 5520344 - Apparatus for the comminution of suspended fibre material (1996-05-28),

12. 5510039 - Method for separating off solid materials (1996-04-23),

13. 5509536 - Method and apparatus for the sorting of fiber suspensions (1996-04-23),

14. 5469784 - Calender assembly including an additional roll displaced into the path (1995-11-28),

15. 5468389 - Double-acting pusher centrifuge (1995-11-21),

Company Overview

Sulzer-Escher Wyss Limited, based in Ravensburg, Germany, specializes in advanced papermaking technology. The company focuses on developing innovative solutions in areas such as flotation, dewatering, and calendering, enhancing the efficiency and quality of paper production processes. With expertise in managing fiber suspensions and optimizing rolls and screw compressors, Sulzer-Escher Wyss Limited plays a crucial role in the paper industry, addressing challenges related to pressure pulsations and ensuring high-performance outcomes for its clients.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

111 Patents

#2 in Ravensburg

#537 in Germany

#7,114 in the World

Ravensburg, Germany

Sulzer-Escher Wyss Limited

Forward Citations = 1,022

112 inventors:

Herbert Holik (18 out of 34 patents)

Alfred Bubik (13 out of 40 patents)

Hans K Dahl (13 out of 26 patents)

4. Wolf-Gunter Stotz (11 out of 30 patents)

5. Otto Hildebrand (9 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sulzer-Escher Wyss Limited. Retrieved from https://idiyas.com/company/sulzer-escher-wyss

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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