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Zurich, Switzerland

Sulzer-escher Wyss Limited

USPTO Granted Patents = 111

Trademarks = 3

Forward Citations = 1,018

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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 Separation

Pressure Pulsation Damping

Screw Compressor

Paper Web Drying

Fiber Web Guiding

Dewatering Press

Calender Assembly

Roller Mill

Multilayer Head Box

Papermaking Machine

Contaminant Removal

Heat Protection Hood

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),

Sulzer-Escher Wyss Limited is a leading global provider of specialized equipment and engineering solutions for the oil and gas, power, water, and general industry markets. With a legacy of over 200 years, the company has built a strong reputation for delivering high-quality products and services. Sulzer-Escher Wyss offers a wide range of innovative products, including pumps, agitators, mixers, compressors, and turbines, which help customers enhance their efficiency and productivity. By combining advanced technology with extensive industry knowledge, Sulzer-Escher Wyss continues to drive progress and provide sustainable solutions for its clients worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

111 Patents

#12 in Zurich

#147 in Switzerland

#6,914 in the World

Zurich, Switzerland

Sulzer-escher Wyss Limited

Forward Citations = 1,018

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)

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