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Glarus, Switzerland

Patelhold Patentverwertungs- Und Elektro-holding Ag

USPTO Granted Patents = 3

Forward Citations = 68

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5 inventors (with patents filed for the assignee):

Alfred Kach (2 out of 6 patents)

Gustav Guanella (1 out of 6 patents)

Claude Andre Vouga (1 out of 1 patent)

4. Markus Bruckner (1 out of 1 patent)

5. Peter Affolter (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 4027153 - Fibre network having a passive optical coupling element for (1977-05-31),

2. 3978288 - Method and apparatus for the secret transmission of speech signals (1976-08-31),

3. 3973226 - Filter for electromagnetic waves (1976-08-03),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#11 in Glarus

#2,332 in Switzerland

Glarus, Switzerland

Patelhold Patentverwertungs- Und Elektro-holding Ag

Forward Citations = 68

5 inventors:

Alfred Kach (2 out of 6 patents)

Gustav Guanella (1 out of 6 patents)

Claude Andre Vouga (1 out of 1 patent)

4. Markus Bruckner (1 out of 1 patent)

5. Peter Affolter (1 out of 1 patent)

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