Granted Patent
Utility
US 6,644,944 · App. 09/985,548
Uni-directional flow microfluidic components
Inventor:
Christoph Karp
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Nov 5, 2001
Inventor
Christoph Karp
Assignee (at issue)
Nanostream, 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.