US PATENT SUBCLASS 422 / 18
.~.~.~ Using inorganic silicon or phosphorus compound

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

1  DF  PROCESS DISINFECTING, PRESERVING, DEODORIZING, OR STERILIZING {15}
7  DF  .~ Maintaining environment nondestructive to metal {5}
14  DF  .~.~ Essentially pure water environment {5}
18.~.~.~ Using inorganic silicon or phosphorus compound

DEFINITION

Classification: 422/18

Using inorganic silicon or phosphorus compound:

(under subclass 14) Process wherein an inorganic silicon or phosphorus compound is employed.