US PATENT SUBCLASS 204 / 157.97
.~.~.~.~.~.~ Aryl ring containing


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

Internet Version by PATENTEC © 1999      Terms of Use



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}
157.94  DF  .~.~.~ Halogen product produced {5}
157.95  DF  .~.~.~.~ Carbon and halogen only in product {1}
157.96  DF  .~.~.~.~.~ Carbocyclic ring containing {1}
157.97.~.~.~.~.~.~ Aryl ring containing


DEFINITION

Classification: 204/157.97

Aryl ring containing:

(under subclass 157.96) Subject matter wherein at least one ring is aryl.