Growing community of inventors

Midlothian, United Kingdom

Miguel Fernandes Martins

Average Co-Inventor Count = 2.00

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

Miguel Fernandes MartinsRichard Johnston (1 patent)Miguel Fernandes MartinsMiguel Fernandes Martins (1 patent)Richard JohnstonRichard Johnston (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Oil States Industries (uk) Limited (1 from 11 patents)

2. Oil States Industries Limited (46 patents)


1 patent:

1. 12044093 - Apparatus and method relating to managed pressure drilling

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as of
12/23/2025
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