Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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 |
| 8106245 | Method for preparing chlorohydrin by converting polyhydroxylated aliphatic hydrocarbons Process for preparing a chlorohydrin, wherein a polyhydroxylated aliphatic hydrocarbon whose total metal content, expressed in elemental form, is greater than or equal to 0.1 μg/kg and less than or equal to 1000 mg/kg is reacted with a chlorinating agent. ... | 01/31/2012 |
| 8067645 | Process for producing a chlorhydrin from a multihydroxylated aliphatic hydrocarbon and/or ester thereof in the presence of metal salts Process for producing a chlorohydrin by reaction between a multihydroxylated-aliphatic hydrocarbon, an ester of a multihydroxylated-aliphatic hydrocarbon, or a mixture thereof, and a chlorinating agent, according to which the multihydroxylated-aliphatic hydrocarbon,... | 11/29/2011 |
| 7910781 | Process for the conversion of a crude glycerol, crude mixtures of naturally derived multihydroxylated aliphatic hydrocarbons or esters thereof to a chlorohydrin A process for converting a crude glycerol, crude mixtures of naturally derived multihydroxylated-aliphatic hydrocarbons or esters thereof to a chlorohydrin, by contacting the crude glycerol, crude mixtures of naturally derived multihydroxylated-aliphatic hydrocarbon... | 03/22/2011 |
| 7906690 | Batch, semi-continuous or continuous hydrochlorination of glycerin with reduced volatile chlorinated hydrocarbon by-products and chloracetone levels The present invention relates to a process for converting a multihydroxylated-aliphatic hydrocarbon or ester thereof to a chlorohydrin, by contacting the multihydroxylated-aliphatic hydrocarbon or ester thereof starting material with a source of hydrogen chloride at... | 03/15/2011 |
| 7557253 | Method for converting polyhydroxylated aliphatic hydrocarbons into chlorohydrins Process for preparing a chlorohydrin, wherein: (a) a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture thereof is reacted with a chlorinating agent so as to give a mixture containing chlorohydrin, chlorohydrin ... | 07/07/2009 |
| 7473809 | Method of preparing dichloropropanols from glycerine A method of highly selective catalytic hydrochlorination of glycerine and/or monochloropropanediols to the dichloropropanol products 1,3-dichloro-2-propanol and 2,3-dichloro-1-propanol, carried out in at least one continuous reaction zone at reaction temperatures in... | 01/06/2009 |
| 7268252 | Binaphthol derivatives and their use in optical resolution or optical transformation Disclosed herein are novel binaphthol derivatives and methods for the optical resolution of amino acids or amino alcohols and for the optical transformation of D, L-forms of amino acids using the same. ... | 09/11/2007 |
| 7205443 | Processes for producing fluorine-containing 2,4-diols and their derivatives A process for producing a fluorine-containing 2,4-diol represented by the formula [4], wherein R1 represents a hydrogen atom or an acyclic or cyclic alkyl group having a carbon atom number of 1 to 7; R... | 04/17/2007 |
| 7193114 | Extraction of metals by mercaptans attached to silica gel by azeotropic distillation The present invention attaches a molecule that contains a hydroxyl group (OH) attached to a carbon chain which is attached to a coordinating atom or atoms, the acidity of which is greater than that of silica (i.e., pKA | 03/20/2007 |
| 7157609 | Process for producing propylene chlorohydrin A process of producing propylene chlorohydrin using a reactor having a one-way flow reaction area and a circulating flow reaction area which are connected in series. In this process, a propylene-containing gas is supplied to an aqueous solution of chlorine in the on... | 01/02/2007 |
| 7069291 | Systems and processes for call and call feature administration on a telecommunications network Improved systems and methods for call and call feature setup, administration and processing on PSTN and other telecommunications networks are provided. Calls are set up on a service plane of a conceptual switch that includes a switch plane, control plane, and servic... | 06/27/2006 |
| 6992213 | Method for removing trifluoroethanol from liquids Trifluoroethanol can be isolated from organic liquids that are contaminated by trifluoroethanol by bringing the contaminated liquid into contact with a molecular sieve having a pore size ranging between 0.5 and 1.0 nm, e.g., with molecular sieve 13X. This enables, f... | 01/31/2006 |
| 6992229 | Method for purifying a fluorinated hydroxyl compound The present invention has an object to provide a method for purifying a fluorinated hydroxyl compound of the formula 1 safely in a high yield under industrially practical conditions. Namely, a mixture containing a fluorinated hydroxyl compound of Rf—CR | 01/31/2006 |
| 6956140 | Hydrothermal hydrolysis of halogenated compounds A process for preparing a halogenated alcohol comprising hydrolyzing a halogenated precursor of the halogenated alcohol in water at a temperature near but below the critical point of water. For example, the halogenated alcohol has the formula CF3(CF2... | 10/18/2005 |
| 6930212 | Method for purifying a fluorinated hydroxyl compound The present invention has an object to provide a method for purifying a fluorinated hydroxyl compound of the formula 1 safely in a high yield under industrially practical conditions. Namely, a mixture containing a fluorinated hydroxyl compound of Rf—CR | 08/16/2005 |
| 6894196 | Process for producing a fluorinated alcohol A process for producing a high-purity fluorinated alcohol in a good purification yield, is provided. In a process for producing a fluorinated alcohol, which comprises reacting methanol with tetrafluoroethylene or hexafluoropropylene in the presence of an alky... | 05/17/2005 |
| 6867336 | Method for the continuous production of 2-bromo-2-nitro-1,3-propanediol In a process for the continuous preparation of 2-bromo-2-nitro-1,3-propanediol, nitromethane is firstly reacted with formaldehyde and alkali metal hydroxide and the reaction mixture obtained in this way is subsequently reacted with bromine. ... | 03/15/2005 |
| 6770789 | Process for trifluoromethylation of sulfates The subject invention relates to a process for the trifluoromethylation of sulfates, including cyclic and acyclic sulfates. The subject invention further pertains to the compounds produced by the trifluoromethylation of sulfates. ... | 08/03/2004 |
| 6579725 | Linkers for synthesis of oligosaccharides on solid supports The present invention relates to versatile linkers for tethering a molecule to a solid support, e.g., for tethering a monomer, oligomer or polymer to a solid support, which are stable to a wide range of reaction conditions, but can be cleaved under well-d... | 06/17/2003 |
| 6388124 | Dihalo-compound and process for producing vitamin A derivative There is disclosed a dihalo-compound of formula (1): ##STR1## wherein X1 and X2 represent different halogen atoms, R represents a hydrogen atom or a protective group for a hydroxyl group, and a process for producing vitamin A derivative v... | 05/14/2002 |
| 6350922 | Process for making 2,3-dihalopropanols A process for making 2,3-dihalopropanol including reacting 2,3-dihalopropanal with a hydrogenating agent in the presence of an iridium and a second transition metal mixed metal catalyst where the second transition metal is selected from the group comprisi... | 02/26/2002 |
| 6288285 | Process for producing dichloroacetoxypropane and derivatives thereof A process for producing dichloroacetoxypropane comprising reacting allyl acetate with chlorine in a gaseous phase in the presence of a catalyst comprising an element of Group 16 of the long-form Periodic Table or in the absence of a catalyst. The dichloro... | 09/11/2001 |
| 6118030 | Process for producing dichloroacetoxypropane and derivatives thereof A process for producing dichloroacetoxypropane comprising reacting allyl acetate with chlorine in a gaseous phase in the presence of a catalyst. The dichloroacetoxypropane obtained may be converted to dichloropropanol and epichlorohydrin.... | 09/12/2000 |
| 6025531 | Processes for preparing optically active alcohols and optically active amines A process for preparing an optically active alcohol by reacting a prochiral ketone corresponding to the optically active alcohol and an acid with a mixture of (1) a boron-containing compound selected from the group consisting of i) a borane compound which... | 02/15/2000 |
| 6008419 | Process for making 2,3-dihalopropanols A 2,3-dihalopropanol is made by reacting 2,3-dihalopropanal with molecular hydrogen in the presence of a transition metal-containing catalyst, under conditions such that 2,3-dihalopropanol is formed. The reaction is particularly useful, for example, as St... | 12/28/1999 |
| 5962516 | Immunosuppressive compounds and methods Compounds and methods for use in immunosuppressive and anti-inflammatory treatment, and for inhibiting male fertility, are described. The compounds are triptolide analogs with improved water solubility and low toxicity.... | 10/05/1999 |
| 5929284 | Processes for producing -halo ketones, -halohydrins and epoxides Processes for efficiently producing -halo ketones, -halohydrins and epoxides on an industrial scale. The prosesses include one for producing an -halo ketone of general formula (3) by decarboxylating a product of reaction between a car... | 07/27/1999 |
| 5874650 | Process for preparing 4,4,4-trichlorobutan-1-ol A process for the preparation of 4,4,4-trichlorobutan-1-ol which comprises reacting allyl alcohol with chloroform in the presence of a radical initiator. Preferably the allyl alcohol is added incrementally to the chloroform over the period of the reaction... | 02/23/1999 |
| 5792876 | Process for producing acetals A process is described for producing acetals comprising reacting an aldehyde or a ketone with an alcohol in the presence of a titanium compound having an acetylacetone as a ligand, or in the presence of a compound selected from the group consisting of sta... | 08/11/1998 |
| 5744655 | Process to make 2,3-dihalopropanols A 2,3-dihalopropanol is made by reacting 2,3-dihalopropanal with a hydrogenating agent in the presence of a transition metal-containing catalyst, under conditions such that 2,3-dihalopropanol is formed. The reaction is particularly useful as Step (3) in a... | 04/28/1998 |
| 5731479 | Process for the preparation of optically active alcohols Optically active alcohols are prepared by reducing optically active carboxylic acids with hydrogen in the presence of ruthenium catalysts.... | 03/24/1998 |
| 5696299 | Optical resolution for producing optically active alcohol A process for producing an optically active alcohol comprising carrying out interesterification between a racemic alcohol and an ester selected from the group consisting of (a) a diester between a lower monohydric alcohol and a saturated dicarboxylic acid... | 12/09/1997 |
| 5637780 | Method for preparing alkylating agents and their use for alkylating cyclic ureas This invention relates to methods for preparing alkylating agents and use of the agents prepared. In particular, this invention relates to preparation methods for hydroxy halide and organooxy halide alkylating agents and their use for alkylating cyclic ur... | 06/10/1997 |
| 5576467 | Method of preparing an alcohol The present invention relates to a method of preparing an alcohol by reducing a carboxylic acid or a derivative thereof, more particularly, a method of preparing an alcohol by a reduction reaction in the presence of a zirconium-titanium oxide catalyst. A ... | 11/19/1996 |
| 5556820 | Catalyst component for olefin polymerization and process for producing polyolefins A solid product as a catalyst component for an olefin polymerization catalyst is obtained by the reaction of metallic magnesium, an alcohol, and a halogen in an amount ranging from 0.019 to 0.06 gram-atom per one mole of metallic magnesium. Alternatively,... | 09/17/1996 |
| 5345003 | Method for preparing 2,3-dichloro-1-propanol and 3-chloro-1-propanol A method for preparing 2,3-dichloro-1-propanol and 3-chloro-1-propanol is here disclosed which comprises the step of reacting 1,2-dichloroethane with methanol by the irradiation of light in the presence of at least one compound selected from the group con... | 09/06/1994 |
| 5292911 | Monocyclic terpene derivatives Novel monocyclic terpene derivative of the formula: ##STR1## wherein R is hydrogen atom, trimethylsilyl group or 1-ethoxyethyl group, and novel intermediates therefor. The terpene derivative (I) is a useful intermediate for preparing Sarcophytol A ha... | 03/08/1994 |
| 5278319 | Process for the production of hydrocarbon partial oxidation products An improved process is provided for the production of a partial oxidation product by the vapor phase reaction of a hydrocarbon with substantially pure oxygen in the presence of a suitable catalyst. In the improved process, the partial oxidation product is... | 01/11/1994 |
| 5254756 | Process for the production of (2R,3E)-4-halo-3-buten-2-ols (2R,3E)-4-halo-3-buten-2-ols are produced by kinetic resolution of racemates from the corresponding racemates. The racemate is esterified by reaction with a carboxylic acid derivative, preferably with chloroacetyl chloride. Then the (R)-ester is enantiose... | 10/19/1993 |
| 5227540 | Process for the preparation of primary and secondary fluorine-containing alcohols A process is described for the preparation of fluoroalcohols of the formula below ##STR1## in which Rf is a perfluoroalkyl radical having 1 to 20 carbon atoms and R is hydrogen or an alkyl radical having 1 to 5 carbon atoms, by reacti... | 07/13/1993 |
