Growing community of inventors

North Hollywood, CA, United States of America

Steven C Book

Average Co-Inventor Count = 1.00

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 = 176

Steven C BookSteven C Book (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Auto-shade, Inc. (3 from 27 patents)


3 patents:

1. 5346309 - Collapsible, portable, multiple use, insulated bag with companion

2. 5190376 - Collapsible, portable, multiple use, insulated bag with companion

3. 5179741 - Easily stored infant pillow and blanket

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as of
12/14/2025
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