Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Halogenous component
Reexamination Certificate
2008-03-25
2008-03-25
Nguyen, Ngoc-Yen (Department: 1754)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Halogenous component
C423S245300, C588S317000, C588S406000
Reexamination Certificate
active
07347980
ABSTRACT:
A gas stream containing at least one fluorine compound selected from the group consisting of compounds of carbon and fluorine, compounds of carbon, hydrogen and fluorine, compounds of sulfur and fluorine, compounds of nitrogen and fluorine and compounds of carbon, hydrogen, oxygen and fluorine is contacted with a catalyst comprising at least one of alumina, titania, zirconia and silica, preferably a catalyst comprising alumina and at least one of nickel oxide, zinc oxide and titania in the presence of steam, thereby hydrolyzing the fluorine compound at a relatively low temperature, e.g. 200°–800° C., to convert the fluorine of the fluorine compound to hydrogen fluoride.
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Explanation of Circumstances Concerning Accelerated Examination.
Japanese Office Action.
European Search Report.
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Kanno's Designation of Lead and Backup Counsel, Patent Interference No. 105,402 (McK), Technology Center 1700, Dec. 22, 2005.
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Kanno's Request for File Copies, Patent Interference No. 105,402 (McK), Technology Center 1700, Dec. 22, 2005.
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Rossin's Substantive Motion 6 (for ju
Arato Toshiaki
Azuhata Shigeru
Ikeda Shinzo
Irie Kazuyoshi
Kanno Shuichi
Crowell & Moring LLP
Hitachi , Ltd.
Nguyen Ngoc-Yen
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