For the Inventor, By the Inventor

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Oldcastle, Canada

Crest Mold Technology Inc.

USPTO Granted Patents = 2

Forward Citations = 3

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4 inventors (with patents filed for the assignee):

William Cipkar (2 out of 2 patents)

Edward Helmut Bernard (1 out of 9 patents)

Will James Cipkar (1 out of 1 patent)

4. Brian Gignac (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 11241554 - Manufacturing method for a hood type ventilation device (2022-02-08),

2. 7559763 - Dual material injection mold and method (2009-07-14),

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USPTO Data Jan 1 1976 - Jan 13 2026

2 Patents

#3 in Oldcastle

#5,849 in Canada

Oldcastle, Canada

Crest Mold Technology Inc.

Forward Citations = 3

4 inventors:

William Cipkar (2 out of 2 patents)

Edward Helmut Bernard (1 out of 9 patents)

Will James Cipkar (1 out of 1 patent)

4. Brian Gignac (1 out of 1 patent)

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