US PATENT SUBCLASS 514 / 79
.~.~ Nitrogen containing hetero ring


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

1  DF  DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29}
75  DF  .~ Phosphorus containing other than solely as part of an inorganic ion in an addition salt DOAI {22}
79.~.~ Nitrogen containing hetero ring {6}
80  DF  .~.~.~> Polycylo ring system having a ring nitrogen in the system {2}
83  DF  .~.~.~> Hetero ring is three-membered consisting of one nitrogen and two carbons
84  DF  .~.~.~> Hetero ring is six-membered consisting of three nitrogens and three carbons
85  DF  .~.~.~> Hetero ring is six-membered consisting of two nitrogens and four carbons {1}
89  DF  .~.~.~> Hetero ring is six-membered and includes only one ring nitrogen {1}
91  DF  .~.~.~> Hetero ring is five-membered {1}


DEFINITION

Classification: 514/79

Nitrogen containing hetero ring:

(under subclass 75) Subject matter in which the organo-phosphorus compound contains a heterocyclic ring containing nitrogen as a hetero atom.