Growing community of inventors

Yorba Linda, CA, United States of America

James D Brugman

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 = 33

James D BrugmanFrank Benjamin Springett (54 patents)James D BrugmanGeorge I Boyadjieff (1 patent)James D BrugmanEric Trevor Ensley (24 patents)James D BrugmanDean Allen Bennett (16 patents)James D BrugmanPreston R Fox (1 patent)James D BrugmanJames D Brugman (1 patent)Frank Benjamin SpringettFrank Benjamin Springett (54 patents)George I BoyadjieffGeorge I Boyadjieff (51 patents)Eric Trevor EnsleyEric Trevor Ensley (24 patents)Dean Allen BennettDean Allen Bennett (16 patents)Preston R FoxPreston R Fox (12 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Varco International, Inc. (1 from 49 patents)

2. Varco I/p, Inc. (191 patents)


1 patent:

1. 5451129 - Pipe transfer system

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as of
12/30/2025
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