Growing community of inventors

Houston, TX, United States of America

Jack M Calkins

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 = 9

Jack M CalkinsWeldon B Nance (1 patent)Jack M CalkinsJack M Calkins (1 patent)Weldon B NanceWeldon B Nance (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Witco Chemical Corporation (1 from 63 patents)


1 patent:

1. 4517100 - Lubricating wellbore fluid and method of drilling

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