Growing community of inventors

Quincy, IL, United States of America

Keith Stephens

Average Co-Inventor Count = 3.27

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

Keith StephensTingrong Ren (3 patents)Keith StephensGary Hyer (2 patents)Keith StephensMark Long (1 patent)Keith StephensJonathan Rollier (1 patent)Keith StephensKeith Stephens (3 patents)Tingrong RenTingrong Ren (5 patents)Gary HyerGary Hyer (2 patents)Mark LongMark Long (1 patent)Jonathan RollierJonathan Rollier (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Quincy Compressor LLC (3 from 7 patents)


3 patents:

1. 10156233 - Dual control valve for reciprocating compressor unloader system

2. 10087920 - Compressor bushing

3. 9835147 - Dual control valve for reciprocating compressor unloader system

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as of
12/31/2025
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