Growing community of inventors

Hyannis, MA, United States of America

John P Vanderhoef

Average Co-Inventor Count = 2.00

ph-index = 3

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 = 43

John P VanderhoefRichard C Essig (3 patents)John P VanderhoefJohn P Vanderhoef (3 patents)Richard C EssigRichard C Essig (18 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Bestop, Inc. (3 from 146 patents)


3 patents:

1. 6468149 - Air vent for a vehicle

2. 6309007 - Two-piece hardtop for a sport utility vehicle

3. D442911 - Two-piece hardtop for a sport utility vehicle

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as of
12/20/2025
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