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Sylacauga, AL, United States of America

William D Wilder

Average Co-Inventor Count = 2.00

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 = 41

William D WilderRoger D Brown (2 patents)William D WilderWilliam D Wilder (2 patents)Roger D BrownRoger D Brown (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Madix, Inc. (2 from 8 patents)


2 patents:

1. 5303981 - Standing aid for use with a checkout counter

2. 5199763 - Standing aid for use with a checkout counter

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as of
12/17/2025
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