Granted Patent
Utility
US 5,710,121 · App. 08/777,706
Anionic surfactants having multiple hydrophobic and hydrophilic groups
Inventors:
David J. Tracy, Ruoxin Li, Jean-Marc Ricca
Patented Case
View Patent ↗
Granted: Jan 20, 1998
Filed: Dec 20, 1996
Inventors
David J. Tracy
Ruoxin Li
Jean-Marc Ricca
Assignee (at issue)
Rhone-Poulenc, Inc.
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.