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St. Charles, MO, United States of America

John J Unnerstall

Average Co-Inventor Count = 2.00

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 28

John J Unnerstall ↔ Robert H Unnerstall, Jr (2 patents)John J UnnerstallJohn J Unnerstall (2 patents)Robert H Unnerstall, JrRobert H Unnerstall, Jr (6 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. National Cart Co., Inc. (2 from 3 patents)


2 patents:

1. D488904 - Shopping cart corral

2. D487949 - Shopping cart corral

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as of
12/12/2025
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