Dae Shin

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Tampa, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for controlling the flow of fluids from a well...
- Patent number 8,474,543
- Issue date Jul 2, 2013
- Stojan Kotefski
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Method And Apparatus For Controlling The Flow Of Fluids From A Well...
- Publication number 20120018174
- Publication date Jan 26, 2012
- Stojan Kotefski
- E21 - EARTH DRILLING MINING