Granted Patent
Utility
US 6,189,619 · App. 09/327,108
Sliding sleeve assembly for subsurface flow control
Inventors:
Mark L. Wyatt, Brad N. Huber
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Jun 7, 1999
Inventors
Mark L. Wyatt
Brad N. Huber
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.