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West Bloomfield, MI, United States of America

David J Bickerstaff

Average Co-Inventor Count = 1.00

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 = 34

David J BickerstaffDavid J Bickerstaff (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Ferro Manufacturing Corporation (2 from 31 patents)


3 patents:

1. 12102274 - Wearable hand sanitizer dispenser

2. 4589227 - Side window glass regulator for quarter windows on convertibles

3. 4575967 - Flush glass window regulator

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as of
1/20/2026
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