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Bartlesville, OK, United States of America

Robert W Dahlgren

Average Co-Inventor Count = 2.40

ph-index = 2

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 = 36

Robert W Dahlgren ↔ William H Dennis (1 patent)Robert W Dahlgren ↔ Robert K Bade (1 patent)Robert W Dahlgren ↔ Stephen B Hunt (1 patent)Robert W DahlgrenRobert W Dahlgren (2 patents)William H DennisWilliam H Dennis (3 patents)Robert K BadeRobert K Bade (3 patents)Stephen B HuntStephen B Hunt (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Phillips Petroleum Company (1 from 5,071 patents)

2. Siemens Energy & Automation, Inc. (1 from 567 patents)


2 patents:

1. 6453725 - Gas chromatograph sample and column-switching valve

2. 4553985 - Gas chromatography

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12/20/2025
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