Growing community of inventors

Palatine, IL, United States of America

Charles T Richards

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 = 2

Charles T RichardsEber L Goodwin (1 patent)Charles T RichardsCharles T Richards (1 patent)Eber L GoodwinEber L Goodwin (12 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Am International Incorporated (1 from 191 patents)


1 patent:

1. 4967659 - System for readily interchanging an adjustable printing head on a

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