US PATENT SUBCLASS 512 / 11
.~.~ Chalcogen in the ring

Current as of: June, 1999
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512 /   HD   PERFUME COMPOSITIONS

1  DF  PERFUME COMPOSITIONS {8}
8  DF  .~ Ring containing active ingredient {6}
11.~.~ Chalcogen in the ring {2}
12  DF  .~.~.~> Plural chalcogens in the ring
13  DF  .~.~.~> Polycyclo ring system having the chalcogen containing ring as one of the cyclos

DEFINITION

Classification: 512/11

(under subclass 8) Compositions wherein the ring in the active ingredient includes a chalcogen atom as a ring member (i.e., oxygen, sulfur, selenium or tellurium).