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For the Inventor, By the Inventor

Romanshorn, Switzerland

Duepro Ag


USPTO Granted Patents = 2

Forward Citations = 25

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2 inventors (with patents filed for the assignee):

goldMedal Peter Woerwag (1 out of 1 patent)

silverMedal Peter Woerwag (1 out of 2 patents)


2 patents:

1. 8752241 - Vacuum cleaner nozzle with magnetic lock (2014-06-17),
2. 4370777 - Electric motor control for vacuum cleaner (1983-02-01),
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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#14 in Romanshorn

#2,993 in Switzerland

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Romanshorn, Switzerland

Duepro Ag

Forward Citations = 25

2 inventors:

goldMedal Peter Woerwag (1 out of 1 patent)

silverMedal Peter Woerwag (1 out of 2 patents)

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