Granted Patent
Utility
US 5,908,452 · App. 09/027,358
Prosthetic heart valve with improved blood flow
Inventors:
Jack C. Bokros, John L. Ely, Michael R. Emken, Axel D. Haubold, T. Scott Peters, Jonathan C. Stupka, C. Thomas Waits
Patented Case
View Patent ↗
Granted: Jun 1, 1999
Filed: Feb 20, 1998
Inventors
Jack C. Bokros
John L. Ely
Michael R. Emken
Axel D. Haubold
T. Scott Peters
Jonathan C. Stupka
C. Thomas Waits
Assignee (at issue)
Medical Carbon Research Institute
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.