US PATENT SUBCLASS 204 / 157.69
.~.~.~ Heterocyclic product produced

Current as of: June, 1999
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204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

*  DD  PROCESSES AND PRODUCTS {7}
157.15  DF  .~ Processes of treating materials by wave energy {6}
157.6  DF  .~.~ Process or preparing desired organic product containing at least one atom other than carbon and hydrogen {16}
157.69.~.~.~ Heterocyclic product produced {2}
157.7  DF  .~.~.~.~> Hetero sulfur containing
157.71  DF  .~.~.~.~> Hetero nitrogen containing {1}

DEFINITION

Classification: 204/157.69

Heterocyclic product produced:

(under subclass 157.6) Subject matter wherein the product of the wave energy process is an organic compound wherein one or more carbon atoms are covalently bonded in a ring system with at least one hetero atom of oxygen, sulfur, nitrogen, selenium or tellurium and there are no other different atoms in the ring.