For the Inventor, By the Inventor

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Amstelveen, Netherlands

Royal Packaging Industries Van Leer N.v.

USPTO Granted Patents = 3

Forward Citations = 36

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4 inventors (with patents filed for the assignee):

Davis B Dwinell (2 out of 17 patents)

Maurice Gerardus Maria Van Giezen (1 out of 4 patents)

Paul Martens (1 out of 3 patents)

4. Herman P Kars (1 out of 5 patents)

3 patents: Sort by Forward Citations

1. 6688803 - Connection assembly (2004-02-10),

2. 6386405 - Snap on closure and method (2002-05-14),

3. 5906288 - Anti-glug vent for plastic pails (1999-05-25),

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USPTO Data Jan 1 1976 - Dec 9 2025

3 Patents

#17 in Amstelveen

#1,638 in Netherlands

Amstelveen, Netherlands

Royal Packaging Industries Van Leer N.v.

Forward Citations = 36

4 inventors:

Davis B Dwinell (2 out of 17 patents)

Maurice Gerardus Maria Van Giezen (1 out of 4 patents)

Paul Martens (1 out of 3 patents)

4. Herman P Kars (1 out of 5 patents)

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