Gruendau
Germany
3
2022-11-17
The entities that hold a legal rights for patent applications filed by inventor Schaefer Michael:
Michael Schaefer from Gruendau, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
Polymeric pour point depressants for waxy crude oils
#2 | 2006-12-19Method for reducing or completely eliminating water influx in an underground formation, and crosslinkable copolymers for implementing said method
#3 | 2006-01-26Thermally stable water-soluble polymer which is crosslinkable at high temperatures
4560447 ⎘