Growing community of inventors

Oakhurst, TX, United States of America

Darrell Wayne Mitchum

Average Co-Inventor Count = 2.00

ph-index = 3

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 = 25

Darrell Wayne MitchumRobert G Roycroft (4 patents)Darrell Wayne MitchumDarrell Wayne Mitchum (4 patents)Robert G RoycroftRobert G Roycroft (8 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Patriot Artificial Lift, LLC (4 from 4 patents)


4 patents:

1. 10907452 - Well plunger systems

2. 10718327 - Forged flange lubricator

3. 10221849 - Forged flange lubricator

4. 10161230 - Well plunger systems

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as of
1/9/2026
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