Granted Patent
Utility
US 6,811,997 · App. 10/189,035
Method for chromium analysis and speciation
Inventors:
Abigail M. Aiken, Brent Peyton, William A. Apel, James N. Petersen
Patented Case
View Patent ↗
Granted: Nov 2, 2004
Filed: Jul 2, 2002
Inventors
Abigail M. Aiken
Brent Peyton
William A. Apel
James N. Petersen
Assignee (at issue)
Bechtel BWXT Idaho, LLC
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.