Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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 |
| 7341972 | Singlet oxygen catalysts including condensed carbon molecules The present invention relates to novel singlet oxygen catalysts useful for the production of specialty chemicals. The catalysts include a core material selected from amine coated polymeric beads, amine coated glass beads and multi-generational dendrimers to which co... | 03/11/2008 |
| 7294734 | Process for converting a hydrocarbon to an oxygenate or a nitrile This invention relates to a process for converting a hydrocarbon reactant to a product comprising an oxygenate or a nitrile, the process comprising: (A) flowing a reactant composition comprising the hydrocarbon reactant, and oxygen or a source of oxygen, and optiona... | 11/13/2007 |
| 7250529 | Synthesis process for 2-(3-hydroxy-1-adamantyl)-2-oxoacetic acid A highly advantageous process for the preparation of 2-(3-hydroxy-1-adamantyl)-2-oxoacetic acid or a salt thereof is described. The process comprises subjecting 1-acetyl 3-hydroxyadamantane to liquid phase oxidation with permanganate to produce 2-(3-hydroxy-1-adaman... | 07/31/2007 |
| 7241908 | Process for the direct synthesis of hydrogen peroxide The invention is directed to the preparation of organic or aqueous-organic hydrogen peroxide solutions by direct synthesis from a non-explosive gaseous mixture containing hydrogen and oxygen. The process is carried out in the presence of a noble metal catalyst, usin... | 07/10/2007 |
| 7193110 | Method for producing carboxylic acid An aldehyde-containing oily solution and an aqueous hydrogen peroxide solution are reacted in the presence of a catalyst comprising a polymer compound having a sulfonic acid group in a side chain thereof in a heterogeneous solution system. According to such a reacti... | 03/20/2007 |
| 7126024 | Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts This invention is directed to a process for making a salt of a carboxylic acid. The process comprises contacting a catalyst with an alkaline mixture comprising a primary alcohol. In one embodiment, the catalyst comprises a metal supporting structure (preferably a me... | 10/24/2006 |
| 7109379 | Method for producing carbonyl compound An oily solution of water-insoluble aliphatic alcohol is allowed to react with an aqueous hydrogen peroxide solution in the presence of a catalyst containing a metal compound belonging to Group 8 to 10 of the Periodic Table in a heterogeneous solution system. As a r... | 09/19/2006 |
| 7074954 | Process for the oxidative purification of terephthalic acid Disclosed is a process to produce a purified carboxylic acid slurry. The process comprises removing impurities from a crystallized product in a solid liquid displacement zone to form the purified carboxylic acid slurry. The process produces purified carboxylic acid ... | 07/11/2006 |
| 6852893 | Method for oxidizing hydrocarbons The invention relates to a method for oxidizing substrates such as hydrocarbons, waxes or soot. The method involves the use of a compound of formula (I) in which: R1 and R2 represent H, an aliphatic or aromatic alkoxy radical, carboxyl radical, alkoxycarbonyl radica... | 02/08/2005 |
| 6809207 | Amino acid derivatives The present invention provides certain alpha-amino acids and derivatives thereof, such as, but not limited to, esters, amides and salts. These derivatives may comprise such representative side groups as a phenyl, pyridyl, piperidinyl, tetrahydropyranyl, tetrahydroth... | 10/26/2004 |
| 6770781 | Process for the preparation of alpha-arylalkanoic acids A process for the preparation of meta or para-substituted α-arylalkanoic acids of formula (I) wherein R and R1 are as defined in the disclosure. ... | 08/03/2004 |
| 6762319 | Hydrocarbon, alcohol and/or ketone oxidation method The present invention relates to the oxidation, by means of oxygen or a gas containing it, of hydrocarbons to the corresponding carboxylic acids, alcohols and/or ketones or of alcohols and/or ketones to the corresponding carboxylic acids. It consists more precisely ... | 07/13/2004 |
| 6740776 | Air oxidation of an aromatic aldehyde to an aromatic acid A low temperature process for preparing an aromatic acid having formula (I), said process comprising reacting an aromatic aldehyde having formula (II) with a gas having an ox... | 05/25/2004 |
| 6593494 | Process for preparing carboxylic acids by oxidation of aldehydes Process for the oxidation of aldehydes to the corresponding acids in which an aldehyde as substrate is oxidized to the corresponding acid in the presence of an equimolar amount, or a molar excess, of periodate, catalytic amounts of dichromate or CrO3... | 07/15/2003 |
| 6384279 | Synthesis of a tetraamido macrocycle ligand from a novel diamidodiol A new composition of matter for a diamidodiol and a method for preparing the diamidodiol. The exemplary diamidodiol has the formula C15 H30 N2 O4 and is prepared by reacting a first quantity of 2-amino-2-methyl-... | 05/07/2002 |
| 6320083 | Process for making aromatic aldehydes using ionic liquids A process for the carbonylation of alkyl aromatic compounds uses acidic ionic liquids. In one embodiment, the ionic liquid is intrinsically acidic, having an anion mole fraction of greater than 0.5. The ionic liquids include those comprised of a quaternar... | 11/20/2001 |
| 6303827 | Process for making aromatic aldehydes Alkyl aromatic compounds are converted to alkyl aromatic aldehydes by a carbonylation reaction. The carbonylation catalyst can be a high boiling point carbonylation catalyst which allows for the separation of the aldehyde product by selective volatilizati... | 10/16/2001 |
| 6255525 | Process for preparing purified carboxylic acids A process for preparing an aromatic carboxylic acid having improved purity comprising contacting at an elevated temperature and pressure a mixture comprising an impure aromatic carboxylic acid and a solvent in the presence of hydrogen gas with a carbon ca... | 07/03/2001 |
| 6245936 | Process for the selective preparation of a 2-hydroxybenzoic acid and a 4-hydroxybenzaldehyde and derivatives thereof The present invention concerns a process for the preparation of a 2-hydroxybenzoic acid and of a 4-hydroxybenzaldehyde and derivatives thereof from a mixture of two phenolic compounds, one carrying a formyl or hydroxymethyl group in the 2 position, and th... | 06/12/2001 |
| 6239252 | Single step process for the preparation of poly (oxyalkylene)-alpha, omega-dicarboxylic acid The invention relates to single step process for the preparation of poly (oxyalkylene)-alpha, omega-dicarboxylic acids of the formula HO2 CCH2 O(CH2 CHRO)n CH2 CO2 H, wherein R is hydrogen,... | 05/29/2001 |
| 6130315 | Peptidase inhibitors This invention relates to analogs of peptidase substrates in which the amide group containing the scissile amide bond of the substrate peptide has been replaced by an activated electrophilic ketone moiety. These analogs of the peptidase substrates provide... | 10/10/2000 |
| 6013829 | Process for the asymmetric synthesis of S-acyl derivatives of 2-mercaptomethyl -3- phenyl propanoic acid, application to the synthesis of N-(mercaptoacyl) amino acid derivatives Process for the asymmetric synthesis of S-acyl derivatives of 2-mercaptomethyl-3-phenylpropanoic acid of formula (I): characterized in that it comprises the steps consisting in: a) preparing the diol (VI) by reduction of a malonic ester (V) in the presenc... | 01/11/2000 |
| 5998660 | Process for preparing carboxylic acids This invention relates to a process for preparing carboxylic acids by oxidizing an aldehyde with a peracid in the presence of an amine and/or amine N-oxide catalyst selected from the group consisting of a substituted or unsubstituted alkyl amine, alkyl am... | 12/07/1999 |
| 5808143 | Catalyst based on oxides of Fe, Co, Bi and Mo Catalysts of the formula I Aa Bb Ox !p Cc Dd Fee Cof Ei Fj Oy !q I, where A is bismuth, telluri... | 09/15/1998 |
| 5756858 | Process for the preparation of substituted phenylacetic acid derivatives and novel intermediates The invention relates to novel processes for the preparation of phenyl acetic acid derivatives of the formula (I) some of which are known ##STR1## in which R1, R2 and R3 independently of each other each represent hydr... | 05/26/1998 |
| 5739352 | Process for preparing carboxylic acids This invention relates to a process for preparing carboxylic acids by oxidizing an aldehyde with a peracid in the presence of an amine and/or amine N-oxide catalyst selected from the group consisting of a substituted or unsubstituted alkyl amine, alkyl am... | 04/14/1998 |
| 5739385 | Process for preparing optically active carboxylic acids This invention relates to a process for preparing optically active carboxylic acids by oxidizing an optically active aldehyde with a peracid in the presence of an amine and/or amine N-oxide catalyst selected from the group consisting of a substituted or u... | 04/14/1998 |
| 5689000 | Process for preparing carboxylic acid salts and catalysts useful in such process A process to manufacture a carboxylic acid salt is disclosed wherein an aqueous solution of a primary alcohol is contacted with a base hydroxide in the presence of an effective amount of a catalyst consisting essentially of an alkali resistant support, fr... | 11/18/1997 |
| 5635197 | Treatment and prevention of prostatic cancer metastasis A series of benzoquinolin-3-ones are pharmaceuticals effective in preventing the development of prostatic cancer, or preventing or treating the metastasis to bone of prostatic cancer.... | 06/03/1997 |
| 5629007 | Method of preventing prostatic cancer development A series of benzoquinolin-3-ones are pharmaceuticals effective in preventing the development of prostatic cancer, or preventing or treating the metastasis to bone of prostatic cancer.... | 05/13/1997 |
| 5608107 | Preparation of alkoxyalkanoic acids A process for preparing an alkoxyalkanoic acid by reacting the corresponding alkoxyalkanol with a resin-supported stable free radical nitroxide in the presence of a chlorine-containing oxidant and a solvent at a temperature in the range of from about 0° ... | 03/04/1997 |
| 5481032 | Process for the preparation of halogenated benzoic acids A process for the preparation of halogenated benzoic acids of formula (1): ##STR1## in which R1, R2, R3, R4 and R5 are hydrogen, fluorine, chlorine or bromine atoms or C1 -C6 -al... | 01/02/1996 |
| 5434302 | Method for the preparation of optically active 2-aryl alkyl aldehydes and formation of 2-aryl-alkanoic acids therefrom The present process is directed to preparing optically active 2-aryl alkyl aldehydes by various processes through the use of an optically active amine, (-)-2'-amino-3-phenyl propane. The aldehyde formed can then be oxidized to produce the corresponding ac... | 07/18/1995 |
| 5312975 | Process for the preparation of 5-(2,4-difluorophenyl)-salicylic acid A process for the preparation of 5-(2,4-difluorophenyl)-salicylic acid comprising the reaction of an organometallic derivative with a suitable substituted benzene in the presence of a transition-metal based catalyst is described.... | 05/17/1994 |
| 5290957 | Process for the stereoselective preparation of phenylisoserine derivatives used in making taxols A stereoselective process for preparing phenylisoserine derivatives is disclosed. Benzylamine is reacted with an agent for introducing a phenyl or a t-butoxycarbonyl group. The product undergoes double anionization and then is reacted with acrolein to pro... | 03/01/1994 |
| 5286902 | Process for preparation of 2-(6-methoxy-2-naphthyl)propionic acid and intermediates therefor utilizing 2,6-diisopropylnaphthalene A process is disclosed for the synthesis of 2-(6-methoxy-2-naphthyl)propionic acid that utilizes 2,6-diisopropylnaphthalene.... | 02/15/1994 |
| 5239075 | Process for the preparation of benzo (F) quinolinones This invention relates to a process for the preparation of hexa- and octahydrobenzo[f]quinolin-3-ones.... | 08/24/1993 |
| 5189210 | Process for the preparation of 3- and/or 5-substituted anthranilic acids Anthranilic acids substituted in the 3- and/or 5-position are valuable intermediates for the production of agricultural chemicals. These substituted anthranilic acids can be obtained in good yield without undesirable isomeric byproducts by the oxidative r... | 02/23/1993 |
| 5157152 | Process for the oxidation of a tetrahydrophthalic acid A process for oxidation of a tetrahydro compound of the formula ##STR1## wherein R and R' independently are H, alkyl, aryl or halo, to a glycol of the formula ##STR2## comprises treating the tetrahydro compound with hydrogen peroxide at an ... | 10/20/1992 |
| 5139628 | Process for the preparation of 4-sulfo-2-chlorobenzoic acid A multi stage process for the conversion of 2-chloro-4-sulphotoluene (SCT) to 2-chloro-4-sulphobenzoic acid (SCUBA). Stage (a) comprises a process S1 for the selective side chain bromination of SCT to 2-chloro-4-sulpho-dibromotoluene (SCDBT) or 2-chloro-4... | 08/18/1992 |
