Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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 |
| 7247753 | Method for producing macrocyclic ketones by means of dieckmann codensation in the gas phase The invention relates to a method for producing macrocyclic ketones of general formula (I) by direct cyclisation of compounds of general formula (II) in the gas phase on a heterogeneous catalyst. In general formula (I), X represents a monounsaturated or polyunsatura... | 07/24/2007 |
| 6872856 | Cyclic ketones, their preparation and their use in the synthesis of amino acids A method is provided for making an enantiomerically pure compound of the formula: in which R and R′ represent C1?C10 alkyl, C2?C10 alkenyl or C3?C10 cycloalkyl and the wedges signify (S)- or (R)-stereochemistry, the substituents in compound (II) being trans. Conju... | 03/29/2005 |
| 6828464 | Preparation of cyclopentenones The present invention provides a process for preparing 2-cyclopentenones of the general formula: where R1 to R4 are each hydrogen atoms or are alkyl or alkenyl radicals having from 1 to 12 carbon ... | 12/07/2004 |
| 6787671 | Catalytic osmium-assisted oxidative cleavage of olefins An osmium-assisted process for the oxidative cleavage of oxidizable organic compounds such as unsaturated organic compounds, including alkenes and olefins into aldehydes, carboxylic acids, esters, or ketones. The process uses a metal catalyst comprising osmium and a... | 09/07/2004 |
| 6518461 | Method of continuously producing a cyclododecanone compound A cyclododecanone compound is continuously produced by an isomerization reaction of a corresponding epoxycyclododecane compound in the presence of a catalyst including lithium bromide and/or lithium iodide, the isomerization reaction being carried out by ... | 02/11/2003 |
| 6500990 | Method for producing jasmonate derivatives and intermediates thereof A process for efficiently producing a 2-alkyl-2-cyclopentenone comprising reacting an amine and a hydrogen halide, which are present in a ratio ranging from 1.1:1 to 5:1, with a 2-alkylidene cyclopentanone to carry out an isomerization reaction. A process... | 12/31/2002 |
| 6242413 | Bicyclic aldehyde and ketone odorants The invention relates to bicyclic aldehydes and ketones of formula (I): ##STR1## wherein n is 1 or 2; R1 and R4 are independently H or CH3 ; and R2 and R3 are independently H, CH3 or CH2 C... | 06/05/2001 |
| 6200786 | Process for the preparation of nootkatone by laccase catalysis A method of producing nootkatone by laccase catalyzed oxidation of valencene. Valencene and a composition having laccase activity are reacted in the presence of an oxygen source, at a valencene concentration greater than 0.1%, to form valencene hydroperox... | 03/13/2001 |
| 6031139 | Preparation of -fluoroketones The use of polar organic solvent as the solvent in the direct fluorination, to make an -fluoroketone, of an enol ester or enol trialkylsilyl ether of a compound containing a tautomerisable ketone group, the solvent being relatively inert to fluorin... | 02/29/2000 |
| 6025527 | Trimethylcyclohexenylcyclopropyl ketones, process for producing same, and uses thereof in perfumery Described are trimethylcyclohexenylcyclopropyl ketones having the structure: ##STR1## wherein one of the dashed lines is a carbon--carbon double bond and the other of the dashed lines is a carbon--carbon single bond, uses thereof in augmenting, ... | 02/15/2000 |
| 5519160 | Alkyl 3-(substituted or unsubstituted benzylidene)-1-alkyl-2-oxocyclopentanecarboxylate derivatives, process for preparing the same Derivatives of alkyl 3-(substituted or unsubstituted benzylidene)-1-alkyl-2-oxocylopentanecarboxylate of the following formula (I), ##STR1## wherein R1 and R2 individually represent a lower alkyl group; X is a halogen atom,... | 05/21/1996 |
| 5399775 | Process for preparing substituted cyclobutanes The present invention relates to a process for the preparation of substituted cyclobutanes and their use as intermediates for the preparation of anti-viral nucleoside analogs.... | 03/21/1995 |
| 5243080 | Method of fluorinating by using N-fluoropyridinium pyridine heptafluorodiborate The present invention provides a novel compound represented as ##STR1## The present novel compound is prepared by reacting fluorine with pyridine-boron trifluoride and is useful as a fluorinating agent in the fluorination of organic compounds.... | 09/07/1993 |
| 5191125 | Procedure for the preparation of bicyclo [3.2.0]hept-2-en-7-ones A procedure is described for the preparation of compounds having a bicyclo[3.2.0]heptenonic structure corresponding to the formula: ##STR1## wherein R1 and R2, the same or different are hydrogen or a C1 -C4... | 03/02/1993 |
| 5118863 | Process for producing an ,ଲ-unsaturated carbonyl compound A process for producing an ,ଲ-unsaturated carbonyl compound represented by formula (II): ##STR1## which includes subjecting an alkenyl ester represented by formula (I): ##STR2## and an allyl type carbonic ester to catalytic reaction... | 06/02/1992 |
| 5077275 | Acylated bicycloalkadiene-compound-containing compositions of matter process for preparing same and perfumery uses thereof Described are acylated bicycloalkadiene-compound-containing compositions of matter, mixtures of compounds containing predominantly compounds having the structures: ##STR1## with the compositions of matter containing from 50 up to 100% of the com... | 12/31/1991 |
| 5030739 | Process for the catalytic oxidation of isoprenoids having allylic groups The invention is directed to a process for the catalytic oxidation of an isoprenoid containing at least one allylic hydrogen atom, which process comprises reacting the isoprenoid with oxygen or an oxygen-containing gas in an inert solvent in the presence ... | 07/09/1991 |
| 4910347 | Cycloaliphatic aldehydes and process for the preparation thereof Racemic and optically active cycloaliphatic 2,2,6-trimethylcyclohexanecarboxyaldehyde, also known as dihydrocyclocitral, are prepared by a novel process consisting in the cyclization of enol esters of formula ##STR1## wherein the wavy line defin... | 03/20/1990 |
| 4900870 | Process for the preparation of cycloaliphatic ketones Process for the preparation of cycloaliphatic ketones of formula ##STR1## wherein index m designates integer 0, 1 or 2, n stands for 0 or 1 and the dotted lines represent an optional supplemental bond, which process consists in the deprotonation of a... | 02/13/1990 |
| 4795836 | 2-alkanoyl-2-(1-penten-1-yl)cyclohexanones, process for preparing same, and organoleptic uses thereof and intermediates useful in said process Described are 2-alkanoyl-2-(1-penten-1-yl) cyclohexanones of my invention defined according to the structure: ##STR1## wherein R represents methyl or ethyl; a process for preparing same and organoleptic uses thereof in augmenting or enhancing the aro... | 01/03/1989 |
| 4788337 | 2-alkanoyl-2-(1-penten-1-yl)cyclohexanones, process for preparing same, and organoleptic uses thereof and intermediates useful in said process Described are 2-alkanoyl-2-(1-penten-1-yl) cyclohexanones of my invention defined according to the structure: ##STR1## wherein R represents methyl or ethyl; a process for preparing same and organoleptic uses thereof in augmenting or enhancing the aro... | 11/29/1988 |
| 4721815 | Preparation of substituted benzophenones There is disclosed a process for the preparation of a benzophenone, which process comprises contacting a feed comprising a 3-cyclohexene carboxylic acid in the vapor phase and under suitable conditions with a ketonic decarboxylative coupling catalyst to c... | 01/26/1988 |
| 4499297 | Process for the preparation of alkylated cyclopentenones Cyclopentenones of formula ##STR1## wherein each of symbols R1 and R2, when taken separately, represents an alkyl radical of C1 to C6, or a hydrogen atom, or, when taken together, they represent a polymethy... | 02/12/1985 |
| 4385186 | Optically active 4-hydroxy-3-methyl-2-(2-propynyl)-2-cyclopentenone The present invention relates to a method for producing an optically active (+)-(s)-4-hydroxy-3-methyl-2-2'-propynyl-2-cyclopentenone which comprises reacting (&#b1;)-4-hydroxy-3-methyl-2-2'-propynyl-2-cyclopentenone acid phthalate of the formula (II), ... | 05/24/1983 |
| 4310705 | Preparation of higher unsaturated ketones An improved process for the preparation of higher unsaturated ketones, such as geranylacetone and farnesylacetone, by reacting a ଲ,γ-unsaturated alcohol and an alkyl acetoacetate at an elevated temperature in the presence of an organic aluminum com... | 01/12/1982 |
| 4300001 | Desensitized TNT; its preparation and use The explosive 2,4,6-trinitrotoluene (TNT) is desensitized by dissolving it in oleum of from 10 to 40% (by weight) in strength. The solutions formed preferably contain at least 400 g and at most 480 g of dissolved TNT per liter of oleum in oleum of 20-25% ... | 11/10/1981 |
| 4259518 | 3-Methyl-5-keto-,ω-alkenedioic acids and esters The invention concerns new 3-methyl-5-keto-,ω-alkene-dioic acids of the general formula ##STR1## wherein the double bond is in one of the positions indicated by the broken lines, R1 and R2 independently of one another ar... | 03/31/1981 |
| 4209450 | Introduction of a carbonyl group into a cyclohexene ring A process for introducing an allyl-positioned carbonyl group into a 2,6,6-trimethylcyclohexene ring which carries a polyenyl radical in the 1-position, by oxidizing the ring with a halogen(V)-oxyacid or a salt of such an acid, and the new oxo compounds ob... | 06/24/1980 |
| 4111993 | Process for racemization of allethrolone A novel process for the preparation of racemic allethrolone of the (R,S) configuration comprising heating optically active allethrolone of the (R) configuration or of the (S) configuration or a mixture of the (R) and (S) configurations in non-equimolecula... | 09/05/1978 |
| 4100208 | Process for the production of unsaturated compounds Process for production of ethylenic compounds by hydrogenating the corresponding alkynol with isopropyl alcohol in the presence of a metal complex such as IrH3 CO(P$c;3)2 and IrH3 (P$c;3)2.... | 07/11/1978 |
| 3983177 | Process for the preparation of unsaturated ketones Ketones, which are intermediates in the synthesis of vitamin A or perfumes, and have the general formula: ##EQU1## wherein R1 is hydrogen or C1.sub.-10 hydrocarbon, R2 and R3 are hydrogen or C1.sub.-4 | 09/28/1976 |
