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Pittsburgh, PA, United States of America

James L Hartman

Average Co-Inventor Count = 3.00

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 = 46

James L HartmanGeorge R Swann (2 patents)James L HartmanJames B Krebs (2 patents)James L HartmanJames L Hartman (2 patents)George R SwannGeorge R Swann (16 patents)James B KrebsJames B Krebs (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Chick Machine Tool Inc. (2 from 15 patents)


2 patents:

1. 5562277 - Modular vise-like workholding system

2. 5535995 - Apparatus for supporting multiple vise-like workholding devices

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as of
12/12/2025
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