Growing community of inventors

Houston, TX, United States of America

David Hasler

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 = 0

David HaslerPradeep Annaiyappa (1 patent)David HaslerDavid G Shackelford (1 patent)David HaslerDavid Hasler (1 patent)Pradeep AnnaiyappaPradeep Annaiyappa (11 patents)David G ShackelfordDavid G Shackelford (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nabors Drilling Technologies USA, Inc. (1 from 212 patents)


1 patent:

1. 11781388 - Auto-filling tubulars

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1/9/2026
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