Granted Patent
Utility
US 6,304,327 · App. 09/260,801
Method and apparatus for photometric analysis of chlorine dioxide solutions
Inventors:
Kurtland Scott Campbell, David Hildebrand
Patented Case
View Patent ↗
Granted: Oct 16, 2001
Filed: Mar 2, 1999
Inventors
Kurtland Scott Campbell
David Hildebrand
Assignee (at issue)
Vulcan Chemicals
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.