For the Inventor, By the Inventor

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Dordrecht, Netherlands

Chubb Lips Nederland Bv

USPTO Granted Patents = 3

Forward Citations = 54

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5 inventors (with patents filed for the assignee):

Evert Nieuwkoop (2 out of 8 patents)

Johannes M Ewalds (2 out of 2 patents)

Johan C Hordijk (2 out of 2 patents)

4. Paul Isodore d'Hond (1 out of 4 patents)

5. Antonius P Aulbers (1 out of 3 patents)

3 patents: Sort by Forward Citations

1. 5195341 - Electronic cylinder lock with inductively coupled key (1993-03-23),

2. 5005393 - Electronic key locks (1991-04-09),

3. 4972694 - Lock with an electromechanical release mechanism (1990-11-27),

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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#5 in Dordrecht

#1,635 in Netherlands

Dordrecht, Netherlands

Chubb Lips Nederland Bv

Forward Citations = 54

5 inventors:

Evert Nieuwkoop (2 out of 8 patents)

Johannes M Ewalds (2 out of 2 patents)

Johan C Hordijk (2 out of 2 patents)

4. Paul Isodore d'Hond (1 out of 4 patents)

5. Antonius P Aulbers (1 out of 3 patents)

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