Growing community of inventors

Tananger, Norway

Erik Helsengreen

Average Co-Inventor Count = 3.00

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 = 144

Erik HelsengreenKnut Henriksen (2 patents)Erik HelsengreenCraig Coull (2 patents)Erik HelsengreenErik Helsengreen (2 patents)Knut HenriksenKnut Henriksen (7 patents)Craig CoullCraig Coull (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Baker Hughes Corporation (2 from 5,728 patents)


2 patents:

1. 7823645 - Downhole inflow control device with shut-off feature

2. 7409999 - Downhole inflow control device with shut-off feature

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as of
12/5/2025
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