Granted Patent
Utility
US 6,420,311 · App. 09/641,228
Polyether diamine—based surfactant adjuvants and compositions thereof
Inventors:
Howard M. Stridde, Samir S. Ashrawi
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Aug 17, 2000
Inventors
Howard M. Stridde
Samir S. Ashrawi
Assignee (at issue)
HUNTSMAN PETROCHEMICAL 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.