Growing community of inventors

Overland Park, KS, United States of America

Dan Schwiefert

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 = 12

Dan Schwiefert ↔ Willis R Campbell (1 patent)Dan Schwiefert ↔ Forrest L Robinson (1 patent)Dan Schwiefert ↔ Bruce A Perry (1 patent)Dan SchwiefertDan Schwiefert (1 patent)Willis R CampbellWillis R Campbell (54 patents)Forrest L RobinsonForrest L Robinson (10 patents)Bruce A PerryBruce A Perry (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Separation Oil Services, Inc. (1 from 4 patents)


1 patent:

1. 5316029 - Oil separator

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as of
12/20/2025
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