Egor DUDOCHKIN

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Conroe, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Remotely operated stage cementing methods for liner drilling instal...
- Patent number 9,970,258
- Issue date May 15, 2018
- Weatherford Technology Holdings, LLC
- Ivan Andre Barannikow
- E21 - EARTH DRILLING MINING
Information Patent Grant
Swivel and method of use
- Patent number 9,915,105
- Issue date Mar 13, 2018
- Weatherford Technology Holdings, LLC
- Ivan Andre Barannikow
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
SWIVEL
- Publication number 20150330156
- Publication date Nov 19, 2015
- WEATHERFORD/LAMB, INC.
- Ivan Andre BARANNIKOW
- E21 - EARTH DRILLING MINING
Information Patent Application
REMOTELY OPERATED STAGE CEMENTING METHODS FOR LINER DRILLING INSTAL...
- Publication number 20150330180
- Publication date Nov 19, 2015
- Ivan Andre BARANNIKOW
- E21 - EARTH DRILLING MINING