Granted Patent
Utility
US 5,952,558 · App. 09/052,345
Apparatus for determining the concentration profiles of liquid or gaseous substances along a given path
Inventors:
Walter Knoblach, Klaus Franze, Peter Jax
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Mar 30, 1998
Inventors
Walter Knoblach
Klaus Franze
Peter Jax
Assignee (at issue)
Siemens Aktiengesellschaft
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.