For the Inventor, By the Inventor

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Sprecher + Schuh Ag

USPTO Granted Patents = 65

Trademarks = 1

Forward Citations = 340

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56 inventors (with patents filed for the assignee):

Richard Thaler (7 out of 9 patents)

Rudolf Graf (7 out of 8 patents)

Hans-Rudolf Wuthrich (6 out of 7 patents)

4. Joachim Amsler (6 out of 6 patents)

5. Peter Hilfiker (5 out of 8 patents)

6. Christian Sturzenegger (5 out of 5 patents)

7. Willy Feller (4 out of 6 patents)

8. Adrian W Roth (4 out of 4 patents)

9. Michael Hentschel (3 out of 3 patents)

10. Heinz Unterweger (3 out of 3 patents)

11. Johann Blatter (3 out of 3 patents)

12. Viktor H Stephanides (3 out of 4 patents)

13. Alex Blum (3 out of 3 patents)

14. Heinz Suter (3 out of 3 patents)

15. Heinz Aeschbach (2 out of 3 patents)

Core Competencies:

Electrical Switching Device

High Voltage Measurement Transformer

Magnetic Trigger

Motor Protection Switch

Vacuum Switch

Gas-Blast Switch

Electromagnetic Switch Apparatus

High-Voltage Circuit Breaker

Thermal Circuit Breaker

Current Transformer

Surge Diverter

Electric Insulator

65 patents: Sort by Forward Citations

1. 5097104 - Contact arrangement for an electrical switching device especially for a (1992-03-17),

2. 4843196 - Mode switching device for an electrical switch (1989-06-27),

3. 4816798 - Electrical protection switch (1989-03-28),

4. 4808952 - Magnetic trigger for a selectively operative switch (1989-02-28),

5. 4808910 - High voltage measurement transformer for suspension from a high voltage (1989-02-28),

6. 4745389 - Protection switch with thermal excess-current release (1988-05-17),

7. 4686599 - Motor protection switch (1987-08-11),

8. 4684771 - Vacuum switch (1987-08-04),

9. 4654494 - Actuating mechanism for an electrical switch with pressure contacts, (1987-03-31),

10. 4647730 - Rotary isolating switch, especially encapsulated rotary isolating switch (1987-03-03),

11. 4598264 - Locking mechanism for a mutual mechanical interlocking of two adjoining (1986-07-01),

12. 4598188 - Gas-blast switch (1986-07-01),

13. 4590450 - Electromagnetic switch apparatus (1986-05-20),

14. 4587503 - Auxiliary contact assembly for mounting onto an electromagnetic switch (1986-05-06),

15. 4580117 - Motor protection switch (1986-04-01),

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

65 Patents

#9 in

#217 in Switzerland

#10,867 in the World

Sprecher + Schuh Ag

Forward Citations = 340

56 inventors:

Richard Thaler (7 out of 9 patents)

Rudolf Graf (7 out of 8 patents)

Hans-Rudolf Wuthrich (6 out of 7 patents)

4. Joachim Amsler (6 out of 6 patents)

5. Peter Hilfiker (5 out of 8 patents)

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