Granted Patent
Utility
US 5,928,182 · App. 08/887,045
Pediatric programmable hydrocephalus valve
Inventors:
Robert G. Kraus, Bhupendra C. Patel, Robert W. Pike
Patented Case
View Patent ↗
Granted: Jul 27, 1999
Filed: Jul 2, 1997
Inventors
Robert G. Kraus
Bhupendra C. Patel
Robert W. Pike
Assignee (at issue)
Johnson & Johnson Professional, Inc.
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.