Roman KVASNYTSIA

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Edmonton, CA

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Patents Grantslast 30 patents

Information Patent Grant
Methods for increasing the amplitude of reciprocal extensions and c...
- Patent number 11,814,959
- Issue date Nov 14, 2023
- National-Oilwell Varco, L.P.
- Sean Matthew Donald
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drilling oscillation systems and shock tools for same
- Patent number 11,220,866
- Issue date Jan 11, 2022
- National Oilwell DHT, L.P.
- Sean Matthew Donald
- E21 - EARTH DRILLING MINING
Information Patent Grant
Downhole shock assembly and method of using same
- Patent number 9,593,547
- Issue date Mar 14, 2017
- National-Oilwell DHT, L.P.
- Andrew D. Malcolm
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Drilling Oscillation Systems and Shock Tools for Same
- Publication number 20220090449
- Publication date Mar 24, 2022
- National Oilwell DHT, L.P.
- Sean Matthew Donald
- E21 - EARTH DRILLING MINING
Information Patent Application
Drilling Oscillation Systems and Shock Tools for Same
- Publication number 20180171719
- Publication date Jun 21, 2018
- National Oilwell DHT, L.P.
- Sean Matthew Donald
- E21 - EARTH DRILLING MINING
Information Patent Application
DOWNHOLE SHOCK ASSEMBLY AND METHOD OF USING SAME
- Publication number 20150034387
- Publication date Feb 5, 2015
- NATIONAL OILWELL DHT, L.P.
- Andrew D. MALCOLM
- E21 - EARTH DRILLING MINING