US PATENT SUBCLASS 987 / 2
HEAVY METAL COMPOUNDS WHEREIN THE METAL IS BONDED DIRECTLY TO AT LEAST TWO RING SYSTEMS (METALLOCENES) (17/00)

Current as of: June, 1999
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987 /   HD   ORGANIC COMPOUNDS CONTAINING A Bi, Sb, As, OR P ATOM OR CONTAINING A METAL ATOM OF THE 6TH TO 8TH GROUP OF THE PERIODIC SYSTEM

2HEAVY METAL COMPOUNDS WHEREIN THE METAL IS BONDED DIRECTLY TO AT LEAST TWO RING SYSTEMS (METALLOCENES) (17/00) {1}
3  DF  .~> Group 8 metal atom (Fe, Co, Ni, Pt, Rh, Pd, Ru, Ir, Os) (17/02)

DEFINITION

Classification: 987/2

HEAVY METAL COMPOUNDS WHEREIN THE METAL IS BONDED DIRECTLY TO AT LEAST TWO RING SYSTEMS (METALLOCENES) (17/00):

(under the class definition) Subject matter drawn to organic compounds wherein at least one heavy metal atom is bonded directly to at least two carbocyclic ring systems or at least two ring systems containing carbon and at least one atom of nitrogen, oxygen, sulfur, selenium, or tellurium as the only atoms in the ring or a combination of the above ring systems.

(1) Note. A heavy metal atom is defined as a metal having a specific gravity greater then four.