Growing community of inventors

St. Marys, Canada

David E Courtnage

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 = 1

David E CourtnageJing Wan (1 patent)David E CourtnageMarcel A Grubert (1 patent)David E CourtnageDavid E Courtnage (1 patent)Jing WanJing Wan (5 patents)Marcel A GrubertMarcel A Grubert (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Exxonmobil Upstream Research Company (1 from 1,398 patents)


1 patent:

1. 10082000 - Apparatus and method for isolating fluid flow in an open hole completion

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as of
12/10/2025
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