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Patent No. 5307162

Cloaking System Using Optoelectronically Controlled Camouflage

A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.

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Class 549/17 - Plural ring sulfurs in the hetero ring


Subclass of Class 549 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein the hetero ring contains at least two
No. of patents: 41
Last issue date: 10/06/2009


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NumberTitleIssue Date
7598401Multifunctional cationic photoinitiators, their preparation and use
Compounds of formula (I): [where: R1 is a direct bond, oxygen, a group >CH2, sulphur, a group >C═O, a group —(CH2)2— or a group —N—Ra, where Ra ...
10/06/2009
7405308Thianthrenium salt cationic photoinitiators
Triarylsulfonium salts of formula I or II are useful as initiators for cationic photopolymerizations: wherein Ar1 and Ar2 are independently polycyclic aryl, substituted aryl, heteroaryl, substituted he...
07/29/2008
7381842Oxime ester photoinitiators
Compounds of the formulae I, II, III, IV and V wherein R1 i.a. is C4-C9cycloalkanoyl, C1-C12alkanoyl, C4-C6alke...
06/03/2008
7301705Alicyclic compound for optical material
The alicyclic compound of the present invention has a five- or more membered ring structure having an epithioethylene linkage and/or an epidithioethylene linkage, and has tow or more sulfur atoms in its molecule. Optical materials produced by curing the alicyclic co...
11/27/2007
7138075Molecular actuators, and methods of use thereof
The synthesis of thiophene based conducting polymer molecular actuators, exhibiting electrically triggered molecular conformational transitions is reported. Actuation is believed to be the result of conformational rearrangement of the polymer backbone at the molecul...
11/21/2006
7101998Fused ring compounds, and their use as cationic photoinitiators
Compounds of formula (I): [in which: R1 represents a direct bond, an oxygen atom, a group >CH2, a sulphur atom, a group >C═O, a group —(CH2)2— or a group of formu...
09/05/2006
6949678Oxime ester photoinitiators
Compounds of the formulae I, II, III, IV and V wherein R1 i.a. is C4-C9cycloalkanoyl, C1-C12alkanoyl, C4-C6alkenoyl, or benzoyl; R2
09/27/2005
6528601Polymerizable sulfur-containing (meth) acrylate, polymerizable composition and optical lens
There is disclosed a polymerizable sulfur-containing (meth)acrylate, it has a high refractive index, a great Abbe's number and excellent light resistance and is suitable for the production of a transparent resin which rarely smells at the time of molding ...
03/04/2003
6521769Chiral phosphines, transition metal complexes thereof and uses thereof in asymmetric reactions
Chiral ligands and transition metal complexes based on such chiral ligands useful in asymmetric catalysis are disclosed. The chiral ligands include chiral C1-C6 TunaPhos ligands. The ruthenium TunaPhos complex reduces ketones to the corresponding alcohols...
02/18/2003
6384045Tricyclic and tetracyclic pyrones
This invention provides cancer-active tricyclic and tetracyclic oxypyrones and a method of synthesizing these compounds. Preferred compounds have aryl groups at the 3-position of the oxypyrone ring. The tricyclic oxypyrone synthetic method is a simple con...
05/07/2002
6313075Alkylated thianthrene lubricants
Alkylated thianthrenes are high temperature stable lubricant fluids having excellent thermal stability, antiwear and load-carrying properties and excellent additive solubility as well as multifunctional additives for fuels....
11/06/2001
6294677Thiopyran derivatives
An intermediate represented by the following formula (XVIII), ##STR1## wherein A is a sulfur atom or the group --CH.dbd.CH--; L is an alkylene group which may be substituted, an alkenylene group which may be substituted, or an alkynylene group which may b...
09/25/2001
6127415Apoptosis inducing adamantyl derivatives and their usage as anti-cancer agents
The present invention relates to specific adamantyl or adamantyl group derivative containing retinoid compounds induce apoptosis of cancer cells. These adamantyl retinoid derivatives are useful for the treatment of many cancers and solid tumors, especiall...
10/03/2000
6117869Compounds for and methods of inhibiting matrix metalloproteinases
The present invention relates to compounds of Formula I that inhibit matrix metalloproteinases and to a method of inhibiting matrix metalloproteinases using the compounds ##STR1## More particularly, the present invention relates to a method of treati...
09/12/2000
6031014Initiator compositions and methods for their synthesis and use
Cationic polymerization initiators of formula ##STR1## are disclosed. The acyl sulfonium salts of the present invention differ from known acyl sulfonium initiators in that the substituents R2 and R3 on the sulfur are larger and ...
02/29/2000
5958970Tricyclic and tetracyclic pyrones
This invention provides cancer-active tricyclic and tetracyclic oxypyrones and a method of synthesizing these compounds. Preferred compounds have aryl groups at the 3-position of the oxypyrone ring. The tricyclic oxyprone synthetic method is a simple cond...
09/28/1999
5885936Heterotricyclic herbicides
Compounds of Formula I, and their N-oxides and agriculturally suitable salts, are disclosed which are useful for controlling undesired vegetation ##STR1## wherein Q, X, A, B, R1 through R3, m, p, q, r, and s are as defined in th...
03/23/1999
5591848Spiroconjugated charge-transfer dyes for optical applications
New intramolecular charge-transfer organic dyes are described. The design of these molecules is based on the phenomenon of spiroconjugation, and it provides a modular approach to the preparation of unique materials with interesting optical properties. In ...
01/07/1997
5036067Dibenzoheterocyclic hydroxamic acids and hydroxy ureas as inhibitors of 5-lipoxygenase
Compounds having the formula I: ##STR1## are inhibitors of the 5-lipoxygenase enzyme. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory, and cytoprotective agents. They are also useful in treating diarrhea, hypertension, ...
07/30/1991
5011967Method for preparing aromatic bischloroformate compositions
Bischloroformate oligomer compositions are prepared by passing phosgene into a heterogeneous aqueous-organic mixture containing at least one dihydroxyaromatic compound, with simultaneous introduction of a base at a rate to maintain a specific pH range and...
04/30/1991
4976771Thianthrenes and phenoxathiins useful as fungicides
Compounds of the formula: ##STR1## and stereoisomers thereof, wherein X and Y, which may be the same or different, are oxygen or sulphur; A and B, which may be the same or different, are hydrogen, halogen, alkyl, alkoxy, optionally substituted p...
12/11/1990
4975451Insecticidal cyclopropyl di(aryl) 2-butenes
Compounds of the formula ##STR1## in which Ar is substituted or unsubstituted phenyl, naphthyl, or thienyl; and Ar1 is 3-phenoxyphenyl, 4-fluoro-3-phenoxyphenyl, 2-methyl[1-1'-biphenyl]-3-yl, or 6-phenoxy-2-pyridyl, exhibit pyrethroid...
12/04/1990
4960886Charge transfer complex formed between benzoquinone derivative and electron donor and process for producing the same
A charge transfer complex formed between a benzoquinone derivative represented by formula ##STR1## wherein at least one of the rings A and B represents a heterocyclic ring as defined in the specification, and an electron donor, and a salt of an ...
10/02/1990
4910350Fluorine-substituted cyclohexylcyclohexene derivative
A compound represented by formula (I): ##STR1## wherein R represents a straight chain alkyl group having from 1 to 9 carbon atoms; ##STR2## represents ##STR3## represents a hydrogen atom or a fluorine atom; and ##STR4## has a...
03/20/1990
4814466Method for making thianthrene dianhydride and polyimides obtained therefrom
A method is provided for making 9,10-dithiaanthracene-2,3,6,7-tetracarboxylic acid dianhydride. Polyimides having improved oxidative stability also are provided which can be made intercondensing organic diamine and the aforementioned dianhydride or a ...
03/21/1989
4692464Novel prostacyclin derivatives and a process for the preparation thereof
Compounds of the formula ##STR1## wherein R1 is (a) hydrogen, (b) C1-10 alkyl, (c) C1-10 alkyl substituted by halogen; C1-4 alkoxy; C6-10 aryl; C6-10 aryl substituted by 1-3 halogen at...
09/08/1987
4585793Thioester inhibitors of serine proteases
Certain novel heterocyclic compounds, aromatic thioesters, their preparation, and their use in inhibiting serine proteases with chymotrypsin-like and elastase-like specificity and in the treatment of diseases such as emphysema which involve tissue proteol...
04/29/1986
4434293Tetrahydrothiophene derivatives and methods of preparation
The novel compounds cis-3-hydroxy-4-mercaptotetrahydrothiophene (I) and octahydrodithieno(3,4-b:3',4'e) 1,4-dithin (II) are prepared from 1,4-dithiothreitol and 1,4-dithioerythritol respectively. (I) has utility as an antibacterial agent. (II) has utility...
02/28/1984
4161478Photoinitiators
Onium salts of Group VIa elements having an MF6 -anion, where M is selected from P, As and Sb, have been found to be photo active under ultraviolet light. These onium salts can be employed as cationic photoinitiators when used with a variety of...
07/17/1979
4139516Process for the preparation of thianthrene compounds
A process for the preparation of a thianthrene compound which comprises A. adding sulfur monochloride to an excess of a selected benzene compound in the presence of aluminum chloride and reacting to form a thianthrene compound: aluminum chloride complex in the...
02/13/1979
4105795Antispasmodic substituted sulphoximides
This invention provides compounds of the general formula I ##STR1## wherein R1 and R2 independently represent groups selected from the group consisting of straight chain alkyl groups; branched chain alkyl groups; aryl groups; op...
08/08/1978
4091031Process for the manufacture of substituted thianthrene based products
Thianthrene compounds are prepared by adding sulfur monochloride to an excess of a benzene compound in the presence of aluminum chloride, and reacting to form a thianthrene compound as an insoluble aluminum chloride complex; slurrying the complex in an in...
05/23/1978
4076723Certain dibenzothiacyclic-S-oximides
The present invention is concerned with novel tricyclic sulphoximides and with the preparation thereof. This family of compounds has been found to possess antihistominic, antitussive, antiinflammatory, sedative, and diuretic properties....
02/28/1978
4033981Thianthrene and phenoxathiine s-oximides
The present invention is concerned with novel tricyclic sulphoximides and with the preparation thereof. This family of compounds has been found to possess antihistominic, antitussive, antiinflammatory, sedative, and diuretic properties....
07/05/1977
4025635Cyclic sulphur compounds
Certain tricyclic sulphone compounds each of which is substituted in the 1-,2-,3- or 4-position by a carboxyl or (5-tetrazolyl) group and each of which is optionally substituted in the 5-,6-,7- or 8-position by a second carboxyl or (5-tetrazolyl) group or...
05/24/1977
3997560Process for the manufacture of thianthrene
Thianthrene is prepared by adding sulfur monochloride to an excess of benzene in the presence of aluminum chloride, and reacting at a temperature of 60° to 80° C to form thianthrene as an insoluble thianthrene-aluminum chloride complex; separating the c...
12/14/1976
3992376Phenothiazine sulphoximides
The present invention is concerned with novel tricyclic sulphoximides and with the preparation thereof. This family of compounds has been found to possess antihistaminic, antitussive, antiinflammatory, sedative, and diuretic properties....
11/16/1976
3989715Process for manufacturing chlorothianthrenes
Thianthrene in monochlorotoluene, is reacted with excess chlorine in the presence of a Lewis acid catalyst, to yield a mixture of chlorothianthrenes, the major component of which is 2,3,7,8-tetrachlorothianthrene. Recrystallization of the chlorothianthren...
11/02/1976
3981887Sulfoxides and sulfones
Sulfoxides and sulfones of the formula ##SPC1## Wherein R1 is COOH, COOR4, CH2 OH, or CH2 OR5 ; R2 is CH3 or C2 H5 ; R3 is H, F, Cl, or Br; R
09/21/1976
3978052Phenothiazine-S-oximide compounds
The present invention is concerned with tricyclic sulphoximides and with the preparation thereof. This family of compounds has been found to possess antihistominic, antitussive, antiinflammatory, sedative, and diuretic properties....
08/31/1976
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