Growing community of inventors

Greenville, SC, United States of America

David John Chrisfield

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 = 160

David John ChrisfieldSteven William Backman (2 patents)David John ChrisfieldDavid William Smith (2 patents)David John ChrisfieldKevin Lee Kunkle (2 patents)David John ChrisfieldSteve William Backman (0 patent)David John ChrisfieldDavid John Chrisfield (2 patents)Steven William BackmanSteven William Backman (10 patents)David William SmithDavid William Smith (6 patents)Kevin Lee KunkleKevin Lee Kunkle (3 patents)Steve William BackmanSteve William Backman (0 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. General Electric Company (2 from 51,907 patents)


2 patents:

1. 8176721 - Methods and apparatus for a nitrogen purge system

2. 7721521 - Methods and apparatus for a combustion turbine fuel recirculation system and nitrogen purge system

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as of
12/27/2025
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