Granted Patent
Utility
US 6,265,355 · App. 09/247,479
Gel-breaker composition and a method for breaking a gel
Inventors:
Quintin J. Lai, Daniel P. Newhouse
Patented Case
View Patent ↗
Granted: Jul 24, 2001
Filed: Feb 9, 1999
Inventors
Quintin J. Lai
Daniel P. Newhouse
Assignee (at issue)
Atlantic Richfield Company
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.