US PATENT SUBCLASS 526 / 150
.~.~.~.~.~ At least one atom of Ge, Sn, or Pb in elemental form or bonded to hydrogen or carbon atom

Current as of: June, 1999
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526 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {8}
72  DF  .~ POLYMERS FROM ONLY ETHYLENIC MONOMERS OR PROCESSES OF POLYMERIZING, POLYMERIZABLE COMPOSITIONS CONTAINING ONLY ETHYLENIC MONOMERS AS REACTANTS OR PROCESSES OF PREPARING {43}
89  DF  .~.~ Polymerizing in the presence of a specified material other than monomer {28}
90  DF  .~.~.~ Material contains transition metal or compound thereof {15}
148  DF  .~.~.~.~ Contains two or more diverse non-transition elemental metals, different non-transition hydride compounds, different carbon to non transition metal compounds, or mixture thereof {3}
150.~.~.~.~.~ At least one atom of Ge, Sn, or Pb in elemental form or bonded to hydrogen or carbon atom

DEFINITION

Classification: 526/150

(under subclass 148) Subject matter wherein the specified material contains an atom of a Group IVA (Ge, Sn, Pb)metal in elemental form, or contains a hydride of a Group IV metal, or contains a compound of a Group IVA metal wherein the Group IVA metal atom is directly bonded to a carbon atom.