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Class Information
Number: 556/42
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Heavy metal containing (e.g., ga, in or t1, etc.) > Vanadium, niobium, or tantalum containing (v, nb, or ta)
Description: Compounds which contain vanadium, niobium or tantalum.

Sub-classes under this class:

Class Number Class Name Patents
556/43 Carbon bonded directly to the metal (e.g., cyclopentadienyl vanadium tetracarbonyl, etc.) 317
556/44 The metal is bonded directly to x of a -c(=x)x- group, wherein the x's are the same or diverse chalcogens (e.g., vanadyl xanthate, etc.) 68

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
6313331 Carbene transition metal catalysts Nov. 6, 2001
6309997 Olefin polymerization catalysts, transition metal compounds, processes for olefin polymerization, and .alpha.-olefin/conjugated diene copolymers Oct. 30, 2001
6278009 Heterogeneous catalyst components for olefins polymerization, preparation process and use thereof Aug. 21, 2001
6218558 Transition metal compound, catalyst component for olefin polymerization and process for the preparation of .alpha.-olefin polymer Apr. 17, 2001
6171994 Multiple crosslinking type transition metal compound used for olefin polymerization process Jan. 9, 2001
6100415 Purified alkoxide and process for purifying crude alkoxide Aug. 8, 2000
6093824 Catalyst for the production of olefin polymers Jul. 25, 2000
6077965 Metal complexes with an adamantane-like structure Jun. 20, 2000
6063949 Stereorigid metallocene compound May. 16, 2000
6060568 Carbene transition metal catalysts May. 9, 2000
6037459 Dinitrogen cleavage Mar. 14, 2000
6034258 Polymerization catalysts containing .beta.-diketiminate ligands Mar. 7, 2000
6015917 Tantalum amide precursors for deposition of tantalum nitride on a substrate Jan. 18, 2000
6002031 Metal alkoxyalkoxidecarboxylates and use to form films Dec. 14, 1999
5986074 Metal chelates as pharmaceutical imaging agents, processes of making such and uses thereof Nov. 16, 1999
5962654 Alkoxyalkoxides and use to form films Oct. 5, 1999
5955053 Metal chelates as pharmaceutical imaging agents, processes of making such and uses thereof Sep. 21, 1999
5919963 Process for purifying niobium alkoxides and tantalum alkoxides Jul. 6, 1999
5914417 Nb, Ta and Ti salt solutions and processes for the production and use thereof Jun. 22, 1999
5908947 Difunctional amino precursors for the deposition of films comprising metals Jun. 1, 1999
5877210 Phosphotyrosine phosphatase inhibitors or phosphotyrosine kinase activators for controlling cellular proliferation Mar. 2, 1999
5858323 Sol-gel preparation of lead magnesium niobate (PMN) powders and thin films Jan. 12, 1999
5851945 Olefin polymerization catalyst compositions comprising group 5 transition metal compounds stabilized in their highest metal oxidation state Dec. 22, 1998
5846998 Use of phosphotyrosine phosphatase inhibitors or phosphotyrosine kinase activators for controlling cellular proliferation Dec. 8, 1998
5840947 Organometallic compound Nov. 24, 1998
5840897 Metal complex source reagents for chemical vapor deposition Nov. 24, 1998
5824813 Layered vanadium oxide compositions Oct. 20, 1998
5773539 Catalytic component based on vanadium and its use in the preparation of EP(D)M Jun. 30, 1998
5773637 Perfluoroalkyl sulfonates, their preparation and use Jun. 30, 1998
5756790 Optically active cobalt (II) complexes and method for the preparation of optically active alcohols May. 26, 1998
5756791 Process for the adsorption of chelated organometallic compounds and alumina beads including a chelated organometallic compound May. 26, 1998
5717120 Layered vanadium oxide compositions Feb. 10, 1998
5707913 Amidinato catalyst systems for the polymerization of olefins Jan. 13, 1998
5688733 Catalyst and process for a ziegler polymerisation Nov. 18, 1997
5681973 Microporous heteropolyoxometallates and method of their production and use as catalysts Oct. 28, 1997
5679815 Tantalum and niobium reagents useful in chemical vapor deposition processes, and process for depositing coatings using the same Oct. 21, 1997
5679812 Compound useful for the preparation of a 1-olefin polymer Oct. 21, 1997
5663393 Chiral catalysts and epoxidation reactions Sep. 2, 1997
5637739 Chiral catalysts and catalytic epoxidation catalyzed thereby Jun. 10, 1997
5602267 Organometallic catalysts for epoxidizing prochiral olefins and a new class of amid-salicylidene ligands Feb. 11, 1997
5602266 Microporous square pyramidal-tetrahedral framework vanadium phosphates and their preparation Feb. 11, 1997
5583242 Use of phosphotyrosine phosphatase inhibitors for controlling cellular proliferation Dec. 10, 1996
5565491 Use of phosphotyrosine phospatase inhibitors for controlling cellular proliferation Oct. 15, 1996
5516645 Immunoassay analytical elements containing vanadium IV(V.sup.+4)ions May. 14, 1996
5508458 Chiral catalysts and processes for preparing the same Apr. 16, 1996
5508063 Tantalum compound, process of producing the same, and material for forming tantalum oxide films Apr. 16, 1996
5481039 Compositions comprising 2,2',2"-nitrilotriethanol cyclometalates Jan. 2, 1996
5395954 Organic-inorganic polycondensate and a method of obtaining the same Mar. 7, 1995
5393903 Mono, bis or tris(substituted 2,2'-bipyridine) iron, ruthenium, osmium or vanadium complexes and their methods of preparation Feb. 28, 1995
5384108 Magnetic resonance imaging agents Jan. 24, 1995

1 2 3 4 5

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