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For the Inventor, By the Inventor

Grapevine, TX, United States of America

Poly Farm, Inc.


USPTO Granted Patents = 2

Trademarks = 4

Forward Citations = 3

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1 inventor (with patents filed for the assignee):

goldMedal William C Johnson (2 out of 8 patents)


2 patents:

1. 4892514 - Bag and tube folding method and apparatus (1990-01-09),
2. 4775359 - Bag and tube folding method and apparatus (1988-10-04),
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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#20 in Grapevine, TX

#6,126 in Texas

#92,551 in US

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Grapevine, TX, United States of America

Poly Farm, Inc.

Forward Citations = 3

1 inventor:

goldMedal William C Johnson (2 out of 8 patents)

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