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La Chaux-de-Fonds, Switzerland

Portescap

USPTO Granted Patents = 38

Trademarks = 1

Forward Citations = 313

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22 inventors (with patents filed for the assignee):

Claude Oudet (22 out of 45 patents)

Marc A Heyraud (5 out of 13 patents)

Jean-Claude Girardin (3 out of 3 patents)

4. Norbert Veignat (2 out of 2 patents)

5. Gilbert Drey (2 out of 2 patents)

6. Yvan Greiner (2 out of 2 patents)

7. Andre Martin (2 out of 2 patents)

8. Danielle Regnier (2 out of 2 patents)

9. Luciano Antognini (1 out of 1 patent)

10. Roger Lagger (1 out of 1 patent)

11. Christophe Dayer (1 out of 1 patent)

12. Antognini Luciano (1 out of 1 patent)

13. Paul Piguet (1 out of 2 patents)

14. Erich Jucker (1 out of 1 patent)

15. Andre Lehmann (1 out of 1 patent)

38 patents: Sort by Forward Citations

1. 5763874 - Incremental optical encoder having partially opaqued quadrature detectors (1998-06-09),

2. 5194787 - Control circuit for an electric motor without a collector (1993-03-16),

3. 5053667 - Di- or polyphase synchronous electric motor with a disc-shaped rotor (1991-10-01),

4. 5003686 - Method of manufacturing a synchronous electric motor with magnetized (1991-04-02),

5. 4908592 - Electromagnetic actuating device (1990-03-13),

6. 4891538 - Synchronous motor with sinusodial torque variation in each phase (1990-01-02),

7. 4866323 - Synchronous electric motor with magnetised rotor and method of (1989-09-12),

8. 4823040 - Single-stage, two-phase of four-phase synchronous electric motor (1989-04-18),

9. 4791331 - Brush assembly for electric commutator motors (1988-12-13),

10. 4737753 - Multipolar magnetization device (1988-04-12),

11. 4714854 - Electric motor with a multipolar permanent magnet rotor (1987-12-22),

12. 4707677 - Multipolar magnetization device (1987-11-17),

13. 4682067 - Synchronous electric motor having a disc-shaped permanent magnet rotor (1987-07-21),

14. 4658166 - Synchronous electric motor with disc-shaped permanent magnet rotor (1987-04-14),

15. 4629916 - Method and apparatus for harmonics suppression in motor systems (1986-12-16),

Portescap offers miniature motion solutions including motors, gearboxes, encoders, and drives for a wide range of industries. With their extensive portfolio of products, Portescap delivers customized solutions to meet the unique requirements of their customers.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

38 Patents

#4 in La Chaux-de-Fonds

#348 in Switzerland

#17,302 in the World

La Chaux-de-Fonds, Switzerland

Portescap

Forward Citations = 313

22 inventors:

Claude Oudet (22 out of 45 patents)

Marc A Heyraud (5 out of 13 patents)

Jean-Claude Girardin (3 out of 3 patents)

4. Norbert Veignat (2 out of 2 patents)

5. Gilbert Drey (2 out of 2 patents)

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