US PATENT SUBCLASS 424 / 70.28
.~.~ Quaternary ammonium salts

Current as of: June, 1999
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424 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

70.1  DF  LIVE HAIR OR SCALP TREATING COMPOSITIONS (NONTHERAPEUTIC) {12}
70.27  DF  .~ Cationic surfactant containing {1}
70.28.~.~ Quaternary ammonium salts

DEFINITION

Classification: 424/70.28

Quaternary ammonium salts:

(under subclass 70.27) Compositions which contains a quaternary ammonium cationic surfactant.