Calgary
Canada
3
2021-10-21
The entities that hold a legal rights for patent applications filed by inventor Zhou Liguo:
Liguo Zhou from Calgary, CA has applied for patents for these inventions. The list has both pending applications and granted patents:
Method and system of slow rate pumping
#2 | 2020-03-12Method and system of slow rate pumping
#3 | 2011-05-12Apparatus and method for creating pressure pulses in a wellbore
2670701 ⎘