Granted Patent
Utility
US 5,829,434 · App. 08/446,804
Inhaler for powdered medications
Inventors:
Thomas J. Ambrosio, Charles R. Ashley, Alan J. Bilanin, Charles M. Huck, Andrew E. Kaufman, David J. Kenyon, Srinivas Manthena, Henry R. Sochon, Ken Wilkinson, Tsong-Toh Yang
Patented Case
View Patent ↗
Granted: Nov 3, 1998
Filed: Jun 1, 1995
Inventors
Thomas J. Ambrosio
Charles R. Ashley
Alan J. Bilanin
Charles M. Huck
Andrew E. Kaufman
David J. Kenyon
Srinivas Manthena
Henry R. Sochon
Ken Wilkinson
Tsong-Toh Yang
Assignee (at issue)
SCHERING 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.