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Uster, Switzerland

Zellweger, Ltd.

USPTO Granted Patents = 21

Forward Citations = 183

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17 inventors (with patents filed for the assignee):

Ernst Felix (6 out of 17 patents)

Hans Locher (3 out of 3 patents)

Kurt Aeppli (2 out of 8 patents)

4. Eduard Heusser (2 out of 5 patents)

5. Peter Brassel (2 out of 2 patents)

6. Werner Mannhart (2 out of 2 patents)

7. Peter Feller (1 out of 7 patents)

8. Eduard Baumann (1 out of 2 patents)

9. Ernst Loch (1 out of 5 patents)

10. Istvan Bognar (1 out of 1 patent)

11. Klaus Rommel (1 out of 1 patent)

12. Roger Kniel (1 out of 2 patents)

13. Peter Luethi (1 out of 1 patent)

14. Werner Steinmetz (1 out of 1 patent)

15. August Baumgartner (1 out of 3 patents)

21 patents: Sort by Forward Citations

1. 4343143 - Binding for fiber bundles, a method for the production of the binding (1982-08-10),

2. 4340880 - Method and apparatus for signal recognition in a remote control system (1982-07-20),

3. 4338824 - Method of adjusting a given pretension in threads on tensile strength (1982-07-13),

4. 4319493 - Apparatus for inserting a thread into a testing position of a tensile (1982-03-16),

5. 4311958 - Capacitive thread stopping motion (1982-01-19),

6. 4228814 - Cleaning apparatus for test electrodes (1980-10-21),

7. 4168604 - Method and apparatus for evaluating yarn signals based on the detection (1979-09-25),

8. 4152931 - Method and apparatus for evaluating yarn signals having an at least (1979-05-08),

9. 4122657 - Apparatus for monitoring for thread breakage a continuous sequence of (1978-10-31),

10. 4097692 - Method and apparatus for the two-way transmission of pulses (1978-06-27),

11. 4051756 - Cutting arrangement (1977-10-04),

12. 4051722 - Method and apparatus for measuring irregularities in the cross-section (1977-10-04),

13. 4038723 - Method of and an arrangement for standardizing comber slivers (1977-08-02),

14. 4019132 - Method and apparatus for determining the moisture content of different (1977-04-19),

15. 4016790 - Regulation of electronically operated quality control equipment (1977-04-12),

Zellweger, Ltd. is a Swiss company based in Uster, specializing in advanced technology solutions across various sectors. The organization focuses on the development and manufacturing of high-precision instruments and systems, particularly in the fields of industrial automation and measurement technology. With a commitment to innovation, Zellweger integrates cutting-edge research to enhance operational efficiency and product quality, serving a diverse clientele in both local and international markets.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

21 Patents

#5 in Uster

#591 in Switzerland

#29,893 in the World

Uster, Switzerland

Zellweger, Ltd.

Forward Citations = 183

17 inventors:

Ernst Felix (6 out of 17 patents)

Hans Locher (3 out of 3 patents)

Kurt Aeppli (2 out of 8 patents)

4. Eduard Heusser (2 out of 5 patents)

5. Peter Brassel (2 out of 2 patents)

Please report any incorrect information to [email protected]

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