Growing community of inventors

Tananger, Norway

Roy W Rooyakkers

Average Co-Inventor Count = 9.00

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 = 5

Roy W Rooyakkers ↔ David Michael Haugen (1 patent)Roy W Rooyakkers ↔ Thomas Floyd Bailey (1 patent)Roy W Rooyakkers ↔ Kevin W Smith (1 patent)Roy W Rooyakkers ↔ David J Brunnert (1 patent)Roy W Rooyakkers ↔ Frederick Thomas Tilton (1 patent)Roy W Rooyakkers ↔ Ram Kumar Bansal (1 patent)Roy W Rooyakkers ↔ Graham Alexander Skinner (1 patent)Roy W Rooyakkers ↔ Tom Fuller (1 patent)Roy W RooyakkersRoy W Rooyakkers (1 patent)David Michael HaugenDavid Michael Haugen (135 patents)Thomas Floyd BaileyThomas Floyd Bailey (115 patents)Kevin W SmithKevin W Smith (60 patents)David J BrunnertDavid J Brunnert (49 patents)Frederick Thomas TiltonFrederick Thomas Tilton (35 patents)Ram Kumar BansalRam Kumar Bansal (24 patents)Graham Alexander SkinnerGraham Alexander Skinner (5 patents)Tom FullerTom Fuller (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Weatherford/lamb, Inc. (1 from 1,209 patents)


1 patent:

1. 8955619 - Managed pressure drilling

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12/5/2025
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