Growing community of inventors

San Francisco, CA, United States of America

William Crandall

Average Co-Inventor Count = 1.33

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 = 235

William CrandallC Ward Bond (1 patent)William CrandallWilliam Crandall (2 patents)C Ward BondC Ward Bond (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Talking Signs, Inc. (2 from 7 patents)


2 patents:

1. D388088 - Hollow cover for a lightwave source

2. 5616901 - Accessible automatic teller machines for sight-impaired persons and

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as of
12/30/2025
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