Spring, Texas
United States
3
2012-03-01
The entities that hold a legal rights for patent applications filed by inventor Li Baoyan:
Baoyan Li from Spring, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Upgoing drainholes for reducing liquid-loading in gas wells
#2 | 2010-06-24Apparatus and methods for gas volume retained coring
#3 | 2009-07-23Methods for the identification of bubble point pressure
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