Granted Patent
Utility
US 6,274,657 · App. 08/189,053
Surfactant for forming stable dispersions of rosin esters
Inventors:
John T. Geoghegan, Long Shyong Wang
Patented Case
View Patent ↗
Granted: Aug 14, 2001
Filed: Jan 27, 1994
Inventors
John T. Geoghegan
Long Shyong Wang
Assignee (at issue)
Arizona Chemical Company, LLC
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.