US PATENT SUBCLASS 514 / 642
.~.~ Quaternary ammonium containing

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


514 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

1  DF  DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29}
579  DF  .~ Nitrogen containing other than solely as a nitrogen in an inorganic ion of an addition salt, a nitro or a nitroso DOAI {22}
642.~.~ Quaternary ammonium containing {1}
643  DF  .~.~.~> Benzene ring containing

DEFINITION

Classification: 514/642

Quaternary ammonium containing:

(under subclass 579) Subject matter which contains compounds wherein a pentavalent nitrogen is bonded by four valences to carbon.