% Expired Patents = 16.7

EPO Patents = 3

Forward Citations = 92

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7 inventors (with patents filed for the assignee):

Michel Schwab (9 out of 14 patents)

Mai Xuan Tu (6 out of 8 patents)

Xuan Mai Tu (4 out of 9 patents)

4. Thinh Trong Nguyen (1 out of 18 patents)

5. Xuan-Mai Tu (1 out of 1 patent)

6. Mai Tu Xuan (1 out of 1 patent)

7. Jean P Wia (1 out of 1 patent)

8. Mai Tu Xuan Xuan (0 patent)

12 patents: Sort by Forward Citations

1. 11112758 - Timepiece escapement device and operating method of such a device (2021-09-07),

2. 9323220 - Lever escapement for a timepiece (2016-04-26),

3. 9052694 - Escapement device for timepiece (2015-06-09),

4. 6712500 - Escapement device for timepiece (2004-03-30),

5. 6335619 - Inductive proximity sensor comprising a resonant oscillatory circuit responding to changes in inductive reaction (2002-01-01),

6. 5774426 - Method and device for feeding a single-phase stepping motor (1998-06-30),

7. 5504408 - Method of feeding a single-phase stepping motor (1996-04-02),

8. 5498958 - Inductive proximity sensor with periodic switching for sensing the (1996-03-12),

9. 5429889 - Measurement apparatus and process for sorting used batteries and (1995-07-04),

10. 5400303 - Driving device for timepieces (1995-03-21),

11. 5247235 - Method of supplying power to a single phase step motor (1993-09-21),

12. 5166590 - Method and circuit for feeding a single-phase stepping motor (1992-11-24),

Company Overview

Detra Sa is a Swiss company based in Preverenges, specializing in advanced technology solutions for various industries. The organization focuses on the development and manufacturing of innovative products that enhance efficiency and performance. With a strong emphasis on research and development, Detra Sa is committed to pushing the boundaries of technology, particularly in sectors such as automation and digital solutions. Its strategic location in Switzerland positions it well within the European technology landscape.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

12 Patents

#1 in Preverenges

#928 in Switzerland

#48,209 in the World

Preverenges, Switzerland

Detra Sa

Forward Citations = 92

7 inventors:

Michel Schwab (9 out of 14 patents)

Mai Xuan Tu (6 out of 8 patents)

Xuan Mai Tu (4 out of 9 patents)

4. Thinh Trong Nguyen (1 out of 18 patents)

5. Xuan-Mai Tu (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Detra Sa. Retrieved from https://idiyas.com/company/detra-sa

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]

3 patents (EPO):

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]