U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."

U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 548/404 - Plural chalcogens bonded directly to ring carbons of the five-membered hetero ring (e.g., cyclic imides, etc.)


Subclass of Class 548 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein at least two chalcogens (i.e., oxygen,
No. of patents: 29
Last issue date: 06/10/2008


NumberTitleIssue Date
7385064Catalysts for use in enantioselective synthesis
Disclosed are compounds having the following formula: in which Z11 is selected from a substituted or unsubstituted saturated adamantyl or other polycyclic group and a substituted or unsubstituted branched acyclic...
06/10/2008
6518281Immunotherapeutic agents
Novel amides and imides are inhibitors of tumor necrosis factor଱ and phosphodiesterase and can be used to combat cachexia, endotoxic shock, retrovirus replication, asthma, and inflammatory conditions....
02/11/2003
5877327Anti-fatigue coagents for rubber vulcanization
Novel metal salts of (poly)citraconimide and (poly)itaconimide carboxylic acids, and a vulcanizable rubber composition comprising these novel metal salts and which, upon vulcanization, exhibits improved dynamic properties, are disclosed. Also disclosed ar...
03/02/1999
5663375Pharmaceutical compounds
Pharmaceutical compounds of the formula ##STR1## in which n is 0, 1 or 2 and R1 is attached at any of the positions 7, 8, 9 or 10, and each R1 is halo, carboxy, trifluoromethyl, hydroxy, C1-4 alkyl, C1-4 al...
09/02/1997
5434116Organic transition metal compound having π-bonding heterocyclic ligand and method of polymerizing olefin by using the same
A transition metal organometallic compound comprising a transition metal in any one of group 3A to group 8 of the periodic table and cyclic compounds containing a heteroaom in group 5 or group 5B of the periodic table and having a cyclic structure includi...
07/18/1995
5378699Methods of using dihydropyrans
Methods of treating an immune disease, cell proliferation, restenosis and vascular smooth muscle cells using the pharmaceutical compounds of the formula ##STR1## in which R2 is phenyl, naphthyl or heteroaryl selected from thienyl, pyr...
01/03/1995
5342723Biscationic acid amide and acid imide derivatives as charge controllers
Use of biscationic acid imide and acid imide derivatives whose anion is the stoichiometric equivalent of one or more organic or inorganic, mixed or non-mixed anions, the compounds also being able to exist as mixed crystals with different cations, individu...
08/30/1994
5169953Electrochromic compositions based on diketopyrrolopyrroles
Compositions containing (a) at least one 1,4-diketopyrrolo[3,4-c]pyrrole of the formula I, II, IIa, III or IV ##STR1## and (b) an auxiliary redox system from the ferrocyanide, ferrocene or ammonium iron (II) sulfate series in combination with at lea...
12/08/1992
4935459Synthetic resin compositions comprising flameproofing amounts of nitrogenous/halometallic compounds
Flameproofed compositions of matter include an organic synthetic resin and, as a flame retardant therefor, an effective flameproofing amount of specified nitrogenous/halometallic compounds, certain of which are per se novel....
06/19/1990
4927729Colorless salts of heteropolyacids as charge control substances in toners
Heteropolyacid salts of the formula ##STR1## R1 and R2 independently of one another stand for hydrogen, chlorine, bromine, hydroxyl, C1 - to C4 -alkoxy, nitro or carboxyl, A stand for C1 - to C
05/22/1990
4812577Mercuric acetate phenyl maleimide useful for preparing radiohalogenated maleimides
A mercuric maleimide is utilized as a pharmaceutical kit for preparing radiohalogenated maleimides....
03/14/1989
4803225Dihydroxy-phenethylamino compounds useful as pharmaceuticals
There are provided compounds of formula I, ##STR1## and pharmaceutically acceptable derivatives thereof. There are also described the use of the compounds of formula I as pharmaceuticals, methods for making the compounds and pharmaceutical, e.g. card...
02/07/1989
4798857Complexes of bismuth or antimony halides with amines, suitable as flame retardants for polymers, and polymer compositions containing same
Disclosed are complexes of bismuth or antimony halides with amines having formula: where R is dicyandiamide, guanamine, 2-guanidinobenz-imidazole, isophoronediamine, piperazine, melamine or a compound having from 2 to 9 triazine rings condensed or linked ...
01/17/1989
4551502Macromolecular complexes of amidocarbonylic water-soluble polymers and square platinous and equivalent organometallics
Novel complexes are prepared from water-soluble compounds having at least one amidocarbonylic unit and a square planar organometallic compound....
11/05/1985
4521420Oxoquinazoline carbamates
An oxoquinazoline carbamate of the formula ##STR1## in which R represents hydrogen, alkyl, alkoxy, alkoxyalkyl, alkylthio, alkylthioalkyl, halogenoalkyl or optionally substituted aryl, R1 represents alkyl, R2 represents halogenoalkyl...
06/04/1985
4503066Spiro-linked pyrrolidine-2,5-diones active as enzyme aldose reductase inhibitors
The invention provides various medical compositions for use in treating or preventing certain of the side effects of diabetes or galactosemia. The active ingredients are selected from a series of novel aldose reductase inhibitory spiro-linked pyrrolidine-...
03/05/1985
4383112Chiral amino-alcohol complexes
Chiral Schiff bases according to the general formula: ##STR1## and transition metal complexes thereof, wherein C.sup.* is an asymmetric carbon atom, R1 and R2, which may be the same or different are alkyl, aralkyl, aryl or alkar...
05/10/1983
4370485Germaazaspirodiones
Novel high purity crystalline forms of dialkylgermaazaspirodiones, their preparation and their use in an improved process for the preparation of high purity dialkylgermaazaspiranes and their acid addition salts is disclosed....
01/25/1983
4248785Preparation of germaazaspirodiones and germaazaspiranes
Novel high purity crystalline forms of dialkylgermaazaspirodiones, their preparation and their use in an improved process for the preparation of high purity dialkylgermaazaspiranes and their acid addition salts is disclosed....
02/03/1981
4246077Non-cyanide bright silver electroplating bath therefor, silver compounds and method of making silver compounds
A silver and silver alloy electroplating bath; electrolytic solution; water-soluble silver complex for incorporation therein; and the process for electrodeposition of silver and silver alloys; wherein the electrolytic solution and bath have a pH of at lea...
01/20/1981
4238394Method for making diaryliodonium salts
A method is provided for making certain diaryliodonium salt photoinitiators, based on the initial formation of a diaryliodonium bisulfate. Methylene chloride is substituted for acetic acid during the reaction between potassium iodate and benzene in the pr...
12/09/1980
4203902Process for preparing 6- and 2-substituted-1-carbadethiapen-2-em-3-carboxylic acids
A process is disclosed for preparing antibiotic 6- and 2-substituted-1-carbadethiapen-2-em-3-carboxylic acids and their pharmaceutically acceptable salts and esters (I) ##STR1## wherein: R1 and R2 are selected from hydrogen, alk...
05/20/1980
4177192Succinimides of amino aromatic sulfonic acid salts
Succinimides of aminoaryl sulfonic acid salts provide exceptional detergency, viscosity control and anticorrosion properties to lubricants and greases and to other fluid compositions useful in hydraulic systems. Ammonium, alkylammonium, alkali metal, alka...
12/04/1979
4151185Complex or salt of a platinum (II) compound and a nitrogen containing polymer
A cis- complex or -salt of a square planar platinum compound and a nitrogen containing oligomer or polymer prepared by reacting a platinum (II) compound with a nitrogen containing oligomer or polymer in an organic solvent or an acidic aqueous medium, said...
04/24/1979
4126524Silver complex, method of making said complex and method and electrolyte containing said complex for electroplating silver and silver alloys
A non-cyanide silver and silver-alloy electroplating bath composed of silver salts with imides of organic dicarboxylic acids which form a useful complex. Alloy deposits of silver with up to 5 percent of Copper, Cadmium, Gold, Antimony, Palladium and simil...
11/21/1978
4093614Metal complexes of nitrogen compounds
Multiple metal complexes of nitrogen compounds are prepared by reacting in any desired order (1) an organic reactant, preferably an alkenylsuccinic acid or anhydride or a polyalkylphenol-aldehyde reaction mixture, or a halogenated polyolefin; (2) a polyam...
06/06/1978
4036958Insecticidal and miticidal active isothiuronium tricyclohexyl tin imide
A tricyclohexyl tin imide having the formula ##STR1## is an active insecticide, miticide and lepidoptericide which can be applied to insects, mites or lepidoptera at any stage of development....
07/19/1977
4011167Lubricant compositions containing metal complexes as detergents
Lubricant compositions are provided containing a detergency improving amount of a metal complex prepared by (a) reacting a salt or oxide of a metal capable of forming a Werner complex with a compound containing at least one phenolic group to yield the met...
03/08/1977
3945933Metal complexes of nitrogen compounds in fluids
Multiple metal complexes of nitrogen compounds are prepared by reacting in any desired order (1) an organic reactant, preferably an alkenylsuccinic acid or anhydride or a polyalkylphenol-aldehyde reaction mixture, or a halogenated polyolefin; (2) a polyam...
03/23/1976
 
Sign InRegister
Username  
Password   
forgot password?