logo

For the Inventor, By the Inventor

Winterthur, Switzerland

Sulzer Brothers Limited


USPTO Granted Patents = 790


Trademarks = 4

Forward Citations = 14,976

Loading Chart...
Loading Chart...

520 inventors (with patents filed for the assignee):

goldMedal Otto Frey (51 out of 56 patents)

silverMedal Rudolf Koch (42 out of 48 patents)

bronzeMedal Erwin Pfarrwaller (25 out of 25 patents)

4.  Anton Steiger (24 out of 24 patents)

5.  Otto Hintsch (21 out of 22 patents)

6.  Charles Mandrin (18 out of 20 patents)

7.  Robert R Bucher (14 out of 25 patents)

8.  Peter Riesen (12 out of 12 patents)

9.  Ernst Bosshard (12 out of 12 patents)

10.  Heinz Baumann (11 out of 16 patents)

11.  Paul Lincke (10 out of 14 patents)

12.  Roland Willi (9 out of 30 patents)

13.  John Dalton Griffith (9 out of 30 patents)

14.  Hans Demuth (9 out of 9 patents)

15.  Felix Alfred Streiff (8 out of 18 patents)


Core Competencies:
Static Mixer
Laminar Mixing
Catalyzed Reactions
Solid-Bed Reactor
Fluid Mixing Device
Weaving Technology
Prosthetic Implant
Crystallization Process
Bone Implant
Gas Mixing
Hydrogen Peroxide Production
Weft Yarn Clearing

790 patents:

1. 6428200 - Static laminar mixing method (2002-08-06),
2. 6419386 - Static laminar mixing device (2002-07-16),
3. 5550298 - Device for carrying out catalyzed reactions (1996-08-27),
4. 5515871 - Hollow needle for medical use and a laser method for manufacturing (1996-05-14),
5. 5473082 - Device for carrying out catalyzed reactions (1995-12-05),
6. 5456533 - Static mixing element having deflectors and a mixing device (1995-10-10),
7. 5422020 - Solid-bed reactor for biological sewage treatment (1995-06-06),
8. 5417938 - Device for carrying out catalyzed reactions (1995-05-23),
9. 5392817 - Apparatus for altering the loop length of terry cloth (1995-02-28),
10. 5380088 - Mixing device for small fluid quantities (1995-01-10),
11. 5350566 - Reactor for heterogeneous reactions with a catalyst member (1994-09-27),
12. 5338519 - Process and apparatus for separating substances by crystallization (1994-08-16),
13. 5330535 - Screw-nut for screwing implants together (1994-07-19),
14. 5320644 - Intervertebral disk prosthesis (1994-06-14),
15. 5306993 - System of driving by electric motor machines which work in a periodic (1994-04-26),
Company Overview
Sulzer Brothers Limited, headquartered in Winterthur, Switzerland, specializes in advanced mixing technology and fluid handling solutions. The company is renowned for its expertise in static mixers, laminar mixing, and fluid mixing devices, which are integral to various industrial processes. Additionally, Sulzer is involved in the development of innovative technologies for catalyzed reactions, solid-bed reactors, and crystallization processes. Their diverse portfolio also extends to weaving technology and prosthetic implants, reflecting a commitment to enhancing performance across multiple sectors.
Profile summary synthesized from public USPTO records and patent filings.

logo

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

Sulzer Brothers Limited USPTO Patent Assignee Logo
790 Patents

#1 in Winterthur

#21 in Switzerland

#1,269 in the World

Winterthur, CH
Winterthur, Switzerland

Sulzer Brothers Limited

Forward Citations = 14,976

520 inventors:

goldMedal Otto Frey (51 out of 56 patents)

silverMedal Rudolf Koch (42 out of 48 patents)

bronzeMedal Erwin Pfarrwaller (25 out of 25 patents)

4.  Anton Steiger (24 out of 24 patents)

5.  Otto Hintsch (21 out of 22 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sulzer Brothers Limited. Retrieved from https://idiyas.com/company/sulzer-brothers

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]
Loading…