Granted Patent
Utility
US 5,139,334 · App. 07/583,808
Hydrocarbon analysis based on low resolution raman spectral analysis
Inventor:
Richard H. Clarke
Patented Case
View Patent ↗
Granted: Aug 18, 1992
Filed: Sep 17, 1990
Inventor
Richard H. Clarke
Assignee (at issue)
Boston Advanced Technologies, 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.