Quotables
"If you build a better mousetrap, you will catch better mice."
George Gobel
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.
| Number | Title | Issue Date |
| 8110698 | Process for producing diphenyl carbonate Processes for producing diaryl carbonates are disclosed, where such processes may provide for the production of diaryl carbonates from green house gases, such as carbon dioxide. The processes disclosed advantageously integrate diethyl carbonate and diaryl carbonate ... | 02/07/2012 |
| 8022241 | Processes for producing carbonic ester and producing polycarbonate A process for producing a carbonic ester, characterized in that an aromatic monohydroxy compound or an aliphatic monohydroxy compound is subjected to oxidative carbonylation with carbon monoxide and oxygen in the presence of a palladium catalyst using a compound hav... | 09/20/2011 |
| 7759513 | Photolabile protective groups for improved processes to prepare oligonucleotide arrays The present invention discloses novel and improved nucleosidic and nucleotidic compounds that are useful in the light-directed synthesis of oligonucleotides, as well as, methods and reagents for their preparation. These compounds are characterized by novel photolabi... | 07/20/2010 |
| 7678935 | Esters of pentahydroxyhexylcarbamoyl alkanoic acids Provided are compounds of formula A and formula I: A compound of formula A: wherein n is an integer from 6 to 17 and a compound of formula I: ... | 03/16/2010 |
| 7453007 | Process for the production of unsymmetric and/or symmetric dialkyl carbonates and diols A process for the production of a dialkyl carbonate and a diol, such as dimethyl carbonate and ethylene glycol, by reacting a feed containing a cyclic carbonate, a hydroxy alkyl carbonate and an aliphatic monohydric alcohol in the presence of a transesterification c... | 11/18/2008 |
| 7339070 | Method and apparatus for waste stream recovery A method for recovering a product mixture from a waste stream in a diaryl carbonate manufacturing process comprising reacting the waste stream with an alkyl alcohol to form a reaction mixture, and separating the product mixture from the reaction mixture. ... | 03/04/2008 |
| 7034015 | Aminobenzoephenones The invention relates to a novel class of aminobenzophenones derivatives, to pharmaceutical preparations comprising said compounds, to dosage units of such preparations, to methods of treating patients comprising administering said compounds, and to the use of said ... | 04/25/2006 |
| 7011844 | Formulations for the administration of fluoxetine Composition of matter for application to a body surface or membrane to administer fluoxetine by permeation through the body surface or membrane, the composition comprising fluoxetine to be administered, at a therapeutically effective rate, alone or in combination wi... | 03/14/2006 |
| 6977308 | Method and apparatus for preparing a dialkyl carbonate A method of preparing a dialkyl carbonate includes reacting an alkanol, oxygen, carbon monoxide, and a catalyst to form a mixture that includes a dialkyl carbonate and an alkyl chloroformate. The mixture is separated into a liquid fraction and a gaseous fraction, an... | 12/20/2005 |
| 6864285 | Covalent derivatives of alkanolamides of monocarboxylic and dicarboxylic acids functionally active on the CB2 cannabinoid receptor The present invention relates to novel covalent derivatives of alkanolamides of monocarboxylic and dicarboxylic acids with aminoalcohols of general formula (I) which can usefully be used as agonists of the CB2 cannabinoid receptor and hence as drugs active in pathol... | 03/08/2005 |
| 6740768 | Method for producing symmetrical and asymmetrical carbonates Process for the preparation of symmetrical and asymmetrical carbonates of the general formula I by reaction of alcohols of the general formula II and alkyl or aryl halides of the general formula III, R—... | 05/25/2004 |
| 6683112 | Gabapentin prodrugs and formulations The present invention relates to novel prodrugs of gabapentin and to pharmaceutical formulations and sustained release formulations containing the prodrugs.... | 01/27/2004 |
| 6548445 | Supported catalysts containing a platinum metal and process for preparing diaryl carbonates In the process for preparing an aromatic carbonate from an aromatic hydroxy compound, CO and O2 in the presence of a quaternary salt and a base using a platinum metal catalyst and a cocatalyst, use is advantageously made of supported catalysts ... | 04/15/2003 |
| 6495522 | Substituted alpha-hydroxy acid caspase inhibitors and the use thereof The present invention is directed to novel substituted -hydroxy acid thereof, represented by the general Formula I: ##STR1## where R1 -R5, X and Z are defined herein. The present invention also relates to the discovery that co... | 12/17/2002 |
| 6469193 | Efficient synthesis of alkyl carbonates Efficient synthetic methods towards mixed aliphatic carbonates through the three component couplings of aliphatic alcohols, alkyl halides and carbon dioxide in the presence of cesium carbonate and tetrabutylammonium iode (TBAI). Due to their enhanced nucl... | 10/22/2002 |
| 6465647 | Oxygen, sulfur and nitrogen substituted cyclohexene and cyclohexane derivatives having retinoid-like biological activity Compounds of the Formula 1, Formula 2, Formula 3 and Formula 4 wherein the symbols have the meaning assigned to them in the disclosure have retinoid-like biological activity. ##STR1##... | 10/15/2002 |
| 6420596 | Process for the selective esterification of tertiary alcohol by an acid anhydride using a reusable solid catalyst This invention provides a process for the selective esterfication of a tertiary alcohol(I) by an acid anhydride(II) to produce corresponding tertiary ester(III) and carboxylic acid(V), using a reusable solid catalyst(IV) comprising one or more halides of ... | 07/16/2002 |
| 6380418 | Catalyst compositions for producing aromatic carbonates A method and catalyst system for producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the method includes the step of contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbo... | 04/30/2002 |
| 6350893 | Method for the production of dibenzyl carbonates Dibenzyl carbonates are prepared by reacting a dialkyl carbonate with a benzyl alcohol in the presence of a basic catalyst and removing the highly volatile components and the catalyst from the reaction mixture. This process permits the preparation of benz... | 02/26/2002 |
| 6346638 | Process for continuous production of dialkyl carbonate and diol A method for continuously producing a (A) dialkyl carbonate and a (B) diol, comprising continuously feeding a cyclic carbonate and an aliphatic monohydric alcohol to a continuous multi-stage distillation column to thereby effect a transesterification ther... | 02/12/2002 |
| 6342623 | Process for co-production of dialkyl carbonate and alkanediol A method is provided for co-producing dialkyl carbonate and alkanediol by reacting alkylene carbonate with alkanol in the presence of an amorphous aluminosilicate catalyst containing alkali metal, alkaline earth metal, or a combination thereof.... | 01/29/2002 |
| 6147246 | Process for preparing alkoxylated dialkyl carbonate compounds A process for alkoxylating an organic carbonate wherein an alkylene oxide is reacted with an organic carbonate such as a dialkyl carbonate in the presence of a catalytically effective amount of a calcium-containing catalyst to produce alkoxylated carbonat... | 11/14/2000 |
| 6147240 | Isocyanoalkyl carbonic acid derivatives, their conversion into secondary amidoalkyl carbonic acid derivatives by isocyanide-multicomponent reactions, as well as these secondary amidoalkyl carbonic acid derivatives The present invention relates to compounds of the general formula I ##STR1## wherein A is a group of the formula ##STR2## and Z is an O or S atom, to the further processing thereof to form novel sec-amidoalkylcarbonic acid derivatives and to tho... | 11/14/2000 |
| 6130346 | Process for preparing an organic compound from an oxirane-containing compound in the presence of a tris(triaminophosphoranylideneamino)phosphine oxide A process for preparing an organic compound, comprising conducting an organic reaction in the presence of a phosphine oxide represented by formula (1); ##STR1## where R1 is the same or different and each represents a hydrogen or hydro... | 10/10/2000 |
| 6028131 | Antioxidants containing phenol groups and aromatic amine groups The invention relates to compounds of the formula I ##STR1## in which R is C1 -C18 alkyl, C5 -C8 cycloalkyl, C7 -C9 phenylalkyl, --CH2 --A--R2 or a group of the f... | 02/22/2000 |
| 6001768 | Supported catalysts containing a platinum metal and process for preparing diaryl carbonates In the process for preparing an aromatic carbonate from an aromatic hydroxy compound, CO and O2 in the presence of a quaternary salt and a base, use is advantageously made of supported catalysts which, in the reaction-ready state, contain a pla... | 12/14/1999 |
| 5973183 | Phosphine ligand promoted synthesis of tetraaryloxyalkane Addition of phosphine ligands can produce high yields of tetraphenoxymethane, TPM, and diphenylcarbonate, DPC, in short reaction times and improved reaction rates by a copper-induced condensation of phenol and carbon disulfide, CS2. Either arom... | 10/26/1999 |
| 5973182 | Carbonate Intermediates useful in the preparation of optically active cyclohexylphenylglycolate esters A process for the preparation of optically active phenylcyclohexylglycolate esters is described. The process utilizes carboxylic acid activation to couple (R)- or (S)-cyclohexylphenylglycolic acid (CHPGA) with 4-N,N-diethylamino butynol or other propargyl... | 10/26/1999 |
| 5948922 | Compounds with substituted cyclic hydrocarbon moieties linked by secondary or tertiary oxycarbonyl containing moiety providing reworkable cured thermosets Compounds containing two cyclic hydrocarbon moieties which are substituted to provide crosslinking functionality and which are linked to each other by secondary or tertiary oxycarbonyl containing moiety are basis for compositions which are cured to provid... | 09/07/1999 |
| 5928393 | Fuel additive A fuel additive which comprises a compound selected from a novel amine, oxygen-containing and nitrogen-containing compounds having selected structures. The inventive additive when blended with a gasoline serves to suppress sludge or deposits in fuel intak... | 07/27/1999 |
| 5847189 | Method for continuously producing a dialkyl carbonate and a diol Disclosed is a method for continuously producing a dialkyl carbonate and a diol, comprising: (1) feeding a cyclic carbonate and an aliphatic monohydric alcohol to a continuous multi-stage distillation column, and effecting a transesterification in the pre... | 12/08/1998 |
| 5831113 | Process for producing a carbonic acid diester A process for producing a carbonic acid diester, which comprises carrying out a reaction in a vapor phase of an alcohol, carbon monoxide and oxygen in the presence of a catalyst in a fluidized-bed reactor so that an oxidative carbonylation of the alcohol ... | 11/03/1998 |
| 5780585 | Bacterial nitroreductase for the reduction of CB 1954 and analogues thereof to a cytotoxic form A prodrug of the formula (I): ##STR1## where R1 is a group such that the compound R--NH2 represents actinomycin D, doxorubicin, mitomycin C, or a nitrogen mustard of the formula (IV): ##STR2## a prodrug of the formula ... | 07/14/1998 |
| 5780663 | Process for producing carbonic acid diester A process for producing a carbonic acid diester, a method of removing CO2 and an absorbent for CO2 and an apparatus therefor are provided and are capable of selective removing of CO2 by absorption from a CO-containing gas ... | 07/14/1998 |
| 5767303 | Process of producing carbonic diester A process for the production of a carbonic diester, wherein an alcohol is reacted in a reaction zone with carbon monoxide and oxygen in the presence of (a) metallic copper or a copper compound, (b) a heterocyclic compound containing one or more nitrogen a... | 06/16/1998 |
| 5750758 | Pyrocarbonic acid diesters and the preparation and use thereof This invention is a process for the preparation of a pyrocarbonic acid diester of formula (I) ##STR1## wherein R1 and R1 ' are each, independently of the other, an optionally substituted branched or straight-chain C1 ... | 05/12/1998 |
| 5725840 | Steroidal ester contrast media for x-ray and magnetic resonance imaging The present invention relates to metabolically labile esters, and to contrast media for X-ray and magnetic resonance imaging comprising these esters. The esters have formula (I): ##STR1## in which R3 is asteroid residue. The esters contain... | 03/10/1998 |
| 5719182 | Endothelin receptor anatagonists Novel indane and indene derivatives are described which are endothelin receptor antagonists.... | 02/17/1998 |
| 5656578 | Monocarbonates, use thereof and process for the preparation of compositions containing monocarbonates A monocarbonate represented by the formula (R1)n Ph--O(R2 O)m --CO--O--CH2 --C(R3)(R4)(R5), a lubricating oil containing this monocarbonate, and a process for preparing a ... | 08/12/1997 |
| 5650532 | Acrylic monomer A novel acrylic monomer is produced by addition reacting a hydroxyalkyl (meth)acrylate or its lactone adduct with a cyclic alkylene carbonate, and then acylating the terminal hydroxyl group of the reaction product with a reactive derivative of a monobasic... | 07/22/1997 |
