Granted Patent
Utility
US 5,569,448 · App. 08/378,022
Sulfated nonionic block copolymer surfactants as stabilizer coatings for nanoparticle compositions
Inventors:
Sui-Ming Wong, Ian M. Newington, Elaine Liversidge, Gregory L. McIntire, Alan R. Pitt, Jack M. Shaw
Patented Case
View Patent ↗
Granted: Oct 29, 1996
Filed: Jan 24, 1995
Inventors
Sui-Ming Wong
Ian M. Newington
Elaine Liversidge
Gregory L. McIntire
Alan R. Pitt
Jack M. Shaw
Assignee (at issue)
Nano Systems L.L.C.
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.