Granted Patent
Utility
US 6,510,851 · App. 09/892,025
Method and arrangement for evaluating effective flow resistance of patient breathing circuit
Inventors:
Goran Rydin, Christer Strom, Johan Bennarsten
Patented Case
View Patent ↗
Granted: Jan 28, 2003
Filed: Jun 26, 2001
Inventors
Goran Rydin
Christer Strom
Johan Bennarsten
Assignee (at issue)
Siemens Elema AB
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.