Growing community of inventors

Oregon, WI, United States of America

Charles W Callender

Average Co-Inventor Count = 2.00

ph-index = 1

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 = 211

Charles W CallenderGary R Long (1 patent)Charles W CallenderCharles W Callender (1 patent)Gary R LongGary R Long (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Carnes Company, Inc. (1 from 14 patents)


1 patent:

1. 5117354 - Automated system for pricing and ordering custom manufactured parts

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as of
12/17/2025
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