Granted Patent
Utility
US 6,146,325 · App. 09/325,334
Ventricular assist device
Inventors:
Jeffrey P. Lewis, Troy A. Werley, Raymond K. Newswanger, Glenn E. Fulmer
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Jun 3, 1999
Inventors
Jeffrey P. Lewis
Troy A. Werley
Raymond K. Newswanger
Glenn E. Fulmer
Assignee (at issue)
ARROW INTERNATIONAL 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.