Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Reexamination Certificate
2007-03-02
2008-10-28
Porta, David P. (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
C250S339120
Reexamination Certificate
active
07442936
ABSTRACT:
The present invention provides a method for measuring a lubricant's total basicity by measuring one or more preselected infrared absorption bands of a lubricant and correlating the measured bands to the basicity. Preferably, the measured bands are due to carbonate or sulfate species in the lubricant.
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Reischman P. Thomas
Szobota John S.
Boosalis Faye
Exxonmobil Research and Engineering Company
Katz Gary P.
Porta David P.
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