Growing community of inventors

Wilmington, DE, United States of America

John L Fitzjohn

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 = 86

John L Fitzjohn ↔ Paul C Yates (1 patent)John L Fitzjohn ↔ Richard A Harmon (1 patent)John L Fitzjohn ↔ Karl E Bennett (1 patent)John L FitzjohnJohn L Fitzjohn (1 patent)Paul C YatesPaul C Yates (7 patents)Richard A HarmonRichard A Harmon (3 patents)Karl E BennettKarl E Bennett (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. E.i. Dupont De Nemours and Company (1 from 16,338 patents)

2. Conoco Inc. (1 from 860 patents)


1 patent:

1. 4732213 - Colloidal silica-based fluid diversion

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as of
12/17/2025
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