Growing community of inventors

Chapel Hill, NC, United States of America

Jeffery V Ryan

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 = 29

Jeffery V RyanPaul M Lemieux (1 patent)Jeffery V RyanWilliam T Preston (1 patent)Jeffery V RyanJeffery V Ryan (1 patent)Paul M LemieuxPaul M Lemieux (3 patents)William T PrestonWilliam T Preston (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. The United States of America As Represented by the Administrator of the (1 from 2,546 patents)

2. Arcadis Geraghty-miller, Inc. (1 from 11 patents)


1 patent:

1. 6165251 - On-line gas chromatograph with sample preparation, concentration, and

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12/18/2025
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