Growing community of inventors

Crosby, TX, United States of America

Jan Van Dokkum

Average Co-Inventor Count = 4.00

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 = 45

Jan Van Dokkum ↔ Gary Lynn Hensley (1 patent)Jan Van Dokkum ↔ Adrianus Groeneweg (1 patent)Jan Van Dokkum ↔ Gerritt Stolk (1 patent)Jan Van DokkumJan Van Dokkum (1 patent)Gary Lynn HensleyGary Lynn Hensley (19 patents)Adrianus GroenewegAdrianus Groeneweg (2 patents)Gerritt StolkGerritt Stolk (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Hutchinson-hayes International (1 from 2 patents)


1 patent:

1. 4557142 - Apparatus and method for real-time measurement of drilling fluid

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12/19/2025
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