Growing community of inventors

Spring, TX, United States of America

Douglas C Anderson

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 = 12

Douglas C Anderson ↔ Kenneth J Schmitt (1 patent)Douglas C Anderson ↔ Bernard J Eastlund (1 patent)Douglas C AndersonDouglas C Anderson (1 patent)Kenneth J SchmittKenneth J Schmitt (14 patents)Bernard J EastlundBernard J Eastlund (11 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Production Technologies International Inc. (1 from 3 patents)


1 patent:

1. 4861074 - Tubing collar

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as of
12/17/2025
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