Granted Patent
Utility
US 5,621,059 · App. 08/549,449
Polymeric flow modifiers
Inventors:
William A. Dupont, Marilyn Grolitzer, Meshach Ojunga-Andrew, Linda A. Paradis
Patented Case
View Patent ↗
Granted: Apr 15, 1997
Filed: Oct 27, 1995
Inventors
William A. Dupont
Marilyn Grolitzer
Meshach Ojunga-Andrew
Linda A. Paradis
Assignee (at issue)
Monsanto 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.