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Olney, IL, United States of America

Charles W Bookstaver

Average Co-Inventor Count = 2.40

ph-index = 4

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 = 27

Charles W Bookstaver ↔ Frank Mercurio (4 patents)Charles W Bookstaver ↔ Samuel G Smith (2 patents)Charles W BookstaverCharles W Bookstaver (4 patents)Frank MercurioFrank Mercurio (20 patents)Samuel G SmithSamuel G Smith (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Roadmaster, Inc. (4 from 56 patents)


4 patents:

1. D387119 - Playground assembly support member

2. D374902 - Playground assembly support member

3. D372290 - Sandbox cover

4. D370960 - Sandbox

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as of
12/19/2025
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