Growing community of inventors

Houston, TX, United States of America

Derek M Shumaker

Average Co-Inventor Count = 3.00

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 = 0

Derek M ShumakerSheng Zhan (1 patent)Derek M ShumakerSam Seldon (1 patent)Derek M ShumakerDerek M Shumaker (1 patent)Sheng ZhanSheng Zhan (36 patents)Sam SeldonSam Seldon (4 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. China Petroleum Chemical Corporation (1 from 674 patents)


1 patent:

1. 12320204 - Interconnectable downhole instrument package

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12/12/2025
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