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For the Inventor, By the Inventor

New Castle, PA, United States of America

West Penn Plastic, Inc.


USPTO Granted Patents = 3

Forward Citations = 120

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3 inventors (with patents filed for the assignee):

goldMedal Michael Marino (3 out of 15 patents)

silverMedal Mark Clause (1 out of 3 patents)

bronzeMedal John Popovich (1 out of 1 patent)


3 patents:

1. 6540114 - Dual tamper evident dispensing closure (2003-04-01),
2. 4991733 - Closure and container having pass over inter-engaging ratchet teeth (1991-02-12),
3. 4711363 - Tamper evidence closure (1987-12-08),
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USPTO Data Jan 1 1976 - Jan 20 2026

3 Patents

#12 in New Castle, PA

#2,636 in Pennsylvania

#72,234 in US

...
New Castle, PA, United States of America

West Penn Plastic, Inc.

Forward Citations = 120

3 inventors:

goldMedal Michael Marino (3 out of 15 patents)

silverMedal Mark Clause (1 out of 3 patents)

bronzeMedal John Popovich (1 out of 1 patent)

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