DANIEL HERNANDEZ

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PASADENA, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Downhole concentric friction reduction system
- Patent number 11,851,991
- Issue date Dec 26, 2023
- National-Oilwell Varco, L.P.
- John M. King
- E21 - EARTH DRILLING MINING
Information Patent Grant
Safety joint designed with anti-lock pressure compensation seal
- Patent number 10,006,256
- Issue date Jun 26, 2018
- National Oilwell Varco, LLP
- James R. Streater
- E21 - EARTH DRILLING MINING
Information Patent Grant
Assembly and method for wide catch overshot
- Patent number 9,212,530
- Issue date Dec 15, 2015
- National-Oilwell Varco, L.P.
- James R. Streater
- E21 - EARTH DRILLING MINING
Information Patent Grant
Assembly and method for wide catch overshot
- Patent number 9,200,495
- Issue date Dec 1, 2015
- National-Oilwell Varco, L.P.
- James R. Streater
- E21 - EARTH DRILLING MINING
Information Patent Grant
3-ring non-extrusion seal assembly and method
- Patent number 9,080,423
- Issue date Jul 14, 2015
- National-Oilwell Varco, L.P.
- James R. Streater
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
HARDENED GRAPPLING ELEMENTS FOR RETRIEVING DOWNHOLE TOOLS
- Publication number 20240287862
- Publication date Aug 29, 2024
- National-Oilwell Varco, L.P.
- Michael Rossing
- E21 - EARTH DRILLING MINING
Information Patent Application
DOWNHOLE CONCENTRIC FRICTION REDUCTION SYSTEM
- Publication number 20230111289
- Publication date Apr 13, 2023
- National-Oilwell Varco, L.P.
- John M. King
- E21 - EARTH DRILLING MINING
Information Patent Application
SAFETY JOINT DESIGNED WITH ANTI-LOCK PRESSURE COMPENSATION SEAL
- Publication number 20160145949
- Publication date May 26, 2016
- National-Oilwell Varco, L.P.
- James R. Streater
- E21 - EARTH DRILLING MINING
Information Patent Application
ASSEMBLY AND METHOD FOR WIDE CATCH OVERSHOT
- Publication number 20140069649
- Publication date Mar 13, 2014
- National-Oilwell Varco, L.P.
- James R. STREATER
- E21 - EARTH DRILLING MINING