Granted Patent
Utility
US 4,900,775 · App. 07/161,888
Solubilization of complexes of water-insoluble organic compounds by aqueous solutions of polyvinylpyrrolidone
Inventors:
Terry E. Smith, James R. Cho, Ian W. Cottrell
Patented Case
View Patent ↗
Granted: Feb 13, 1990
Filed: Feb 29, 1988
Inventors
Terry E. Smith
James R. Cho
Ian W. Cottrell
Assignee (at issue)
GAF Chemicals Corporation
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.