...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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 |
| 7230141 | Method for producing toluol derivatives A process for preparing toluene derivatives of the formula I, where R1, R2 and R3 independently of one another are hydrogen, halogen, C1–C6-alkyl, hydroxyl... | 06/12/2007 |
| 7105707 | Process for preparing alkynyl-substituted aromatic and heterocyclic compounds Mono- and disubstituted aryl or heterocyclic acetylenes are produced by a process comprising reacting an aryl nitrile with an alkynylzinc compound, a bis-alkynylzinc compound, or an alkynylmagnesium compound, in the presence of a nickel/phosphine catalyst. ... | 09/12/2006 |
| 6992226 | Single-stage method for producing toluene derivatives A process for preparing toluene derivatives of the formula I where R1, R2 and R3 are, independently of one another, hydrogen, alkyl radicals, hydroxyl groups and/or alkoxy groups, compri... | 01/31/2006 |
| 6881868 | Process for the preparation of (R)-2-alkyl-3-phenyl-1-propanols Compounds of formula (I), wherein R1 and R2 are, independently of one another, H,C1-C6alkyl, C1-C6halogenalkyl, C1-C6alkoxyl, C1-C6alkoxy-C1-C | 04/19/2005 |
| 6821308 | Polyoxyalkylene monoethers with reduced water affinity Oleophilic polyoxyalkylene monoethers having reduced water affinity are disclosed. The monoethers have a hydrocarbyl residue, a polyoxyalkylene moiety, and a hydroxyl end group. The monoethers contain less than about 6 mole percent of alkoxylated unsaturates, and pr... | 11/23/2004 |
| 6624334 | Method for production of aryl alkyl ethers Aryl alkyl ethers can be produced by the reaction of hydroxyaromatics with an alcohol in the presence of a catalyst. This process achieves higher yields of aryl alkyl ethers and the formation of ring-alkylated products and dialkyl ethers is markedly reduc... | 09/23/2003 |
| 6479709 | Process for the production of styrene derivative A process for the production of a styrene derivative is provided. The process comprises reacting a Grignard reagent prepared from an aromatic halogen compound with a vinyl halide in the presence of a catalyst, wherein the catalyst is at least one member s... | 11/12/2002 |
| 6472567 | Process for the production of styrene compound, and styrene compound free from biphenyl A process for the production of a styrene compound is provided. The process comprises reacting a Grignard reagent prepared from a tertiary butoxyphenyl halide with a vinyl halide in the presence of a catalyst, wherein the catalyst is at least one member s... | 10/29/2002 |
| 6274635 | Alkylated resorcinol derivatives for the treatment of immune diseases The present invention provides a method, compounds, and compositions for treating a disease associated with immune dysfunction. In accordance with the method, a pharmacologically-acceptable composition including at least one compound selected from the gro... | 08/14/2001 |
| 6184381 | Process for preparing optically active compounds This document describes a novel and practically excellent process for the preparation of optically active compounds, such as optically active alcohols or amines which are useful for various applications, for example, as synthetic intermediates of pharmace... | 02/06/2001 |
| 6063940 | Process for preparing 1-bromoalkylbenzene derivatives and intermediates thereof A 1-bromoalkylbenzene derivative is prepared by reacting a phenylalkene derivative with hydrogen bromide in the presence of a non-polar solvent. The phenylalkene derivative is prepared by reacting an alkenyl halide with metal magnesium to form a Grignard ... | 05/16/2000 |
| 5986137 | Allylation reagent and process for allylating a nucleophile A process and reagent for allylating a nucleophile preferably of formula (V). (R)n Ar--Y--H (V) The nucleophile is reacted with a reagent containing an allyl derivative and a catalyst in an aqueous phase conta... | 11/16/1999 |
| 5817886 | Process for production of alkyl ether of phenol and catalyst used therein The present invention provides a process for producing an alkyl ether of a phenol from a phenol and an alcohol at a selectivity and a yield higher than in conventional processes, stably over a long period of time. The process is characterized by alkyl-eth... | 10/06/1998 |
| 5635108 | Liquid crystalline compound having conjugated carbon chain and liquid crystal composition containing A hexynediene derivative expressed by the following general formula I and liquid crystal compositions containing the derivative are disclosed: ##STR1## wherein R1 and R2 independently represent an alkyl group or alkoxy group eac... | 06/03/1997 |
| 5610133 | Alkyl-substituted-C1 -C3 alkoxy-C6 -cycloaliphatic compounds, organoleptic uses thereof and processes for preparing same Described are compounds defined according to the structure: ##STR1## wherein Z represents meta or para cyclohexylene or meta or para phenylene and wherein R1 and R2 are the same or different methyl or hydrogen; and wherein R | 03/11/1997 |
| 5583264 | Para-c5 alky-substituted ethoxycyclohexanes, organoleptic uses thereof and processes for preparing same Described are compounds defined according to the structure: ##STR1## wherein Z represents para cyclohexylene or para phenylene and wherein R1, R2 and R3 are the same or different methyl or hydrogen; and wherein R... | 12/10/1996 |
| 5536870 | Process for preparing olefins A process for preparing olefin compounds of the formula ##STR1## where A is aryl, substituted aryl, heteroaryl, substituted heteroaryl, benzyl, substituted benzyl, vinyl or substituted vinyl and R2, R3 and R4 are hydr... | 07/16/1996 |
| 5510541 | Process for the telomerization of conjugated dienes and suitable catalyst therefor Mono-alkadienyl alkyl ethers and di-alkadienyl alkyl ethers are prepared by telomerization of a conjugated diene, by causing said conjugated diene to react with an aliphatic alcohol or an aliphatic diol respectively, by operating in an aqueous/organic bip... | 04/23/1996 |
| 5502031 | Methyl substituted propyl-substituted pentamethyl indane derivatives processes for producing same and perfumery uses thereof Described are methyl, substituted propyl-substituted pentamethyl indane derivatives defined according to the structure: ##STR1## wherein R1 represents chloro, hydroxyl or OR6 ; and R5 represents methyl or hydrogen wit... | 03/26/1996 |
| 5462923 | 1-oxo-substituted and unsubstituted isobutyl-4-ethoxy-benzenes and mixtures thereof with bicyclopentadiene derivatives, uses of same in perfumery and methods for preparing same Described are 1-oxo-substituted and unsubstituted isobutyl-4-ethoxy-benzenes and mixtures thereof with bicyclopentadiene derivatives, wherein the 1-oxo-substituted and unsubstituted isobutyl-4-ethoxy-benzenes are defined according to the structure: #... | 10/31/1995 |
| 5422417 | Substituted phenyl compounds and processes for preparing the same Substituted phenyl compounds endowed with chain extension activity for formulations such as polyurethanes are disclosed, and which have the general formula: ##STR1## wherein n is 1-1000 and m is 1-100; and R1 and R2 are each ... | 06/06/1995 |
| 5387718 | Method of manufacturing alkylphenyl alkyl ethers or alkylphenyl alkyl thioethers Alkylphenyl alkyl ethers or alkylphenyl alkyl thioethers, of the formula ##STR1## where U represents O or S; and R1 -R6 each independently represent an alkyl or aryl group with 1-6 C atoms, but R1 -R5 may e... | 02/07/1995 |
| 5346983 | Substituted phenyl compounds and processes for preparing the same Substituted phenyl compounds endowed with chain extension activity for formulations such as polyurethanes are disclosed, and which have the general formula: ##STR1## wherein n is 1-1000; R1 .dbd.R2, and R1 and R2... | 09/13/1994 |
| 5344997 | Alkylation of aromatics using a fluorided silica-alumina catalyst A fluorided silica-alumina catalyst, particularly one with a silica:alumina ratio in the range of 1:1-9:1 containing from 1 to 6 weight percent fluoride, is particularly effective in the liquid phase alkylation of benzene by linear olefins to produce line... | 09/06/1994 |
| 5321167 | Method of manufacturing nonionic surfactants low in alkylene oxides and low in 1,4-dioxane, using alkali metal alkoxides as catalysts An alkoxidation production low in alkylene oxide and 1,4-dioxane content is prepared by reacting an alkylphenol or fatty alcohol with an alkylene oxide in the presence of an alkali fatty alkoxide obtained by direct reaction of an alkali hydroxide with a f... | 06/14/1994 |
| 5302732 | Use of ultra-low sodium silica-aluminas in the alkylation of aromatics Silica-aluminas having a sodium content less than about 0.1 weight percent show increased stability when used as a catalyst for the alkylation of aromatic compounds. Where such silica-aluminas are used as the catalyst in detergent alkylation their increas... | 04/12/1994 |
| 5130435 | Preparation of vinyl ethers Vinyl ethers of the formula ##STR1## wherein R1, R2 and R3 are identical to or different from one another, each being hydrogen, straight-chain or branched alkyl or alkenyl of up to 12 carbon atoms, cycloalkyl or cyclo... | 07/14/1992 |
| 4960884 | Pesticidal 2-fluoroethyl ethers Pesticidal mono-, di-, and tri-2-fluoroethyl ethers of the formula R1 R2m Ar(OCH2 CH2 F)n, compositions thereof and their insecticidal, acaricidal and nematicidal uses are described and cla... | 10/02/1990 |
| 4918242 | Novel optically 1,3-phenoxypropylhalides A process for producing the optically pure (+)- or (-)-isomer of a phenyl- or substituted-phenylalkanolamine compounds having pharmacologic activity without the need for resolution processes and novel intermediates useful in the process including opticall... | 04/17/1990 |
| 4902850 | Purification of anethole by crystallization A method of purification for anethole which involves forming an aqueous emulsion of crude anethole and crystallizing anethole from the emulsion. The process provides a purified anethole having improved odor and taste.... | 02/20/1990 |
| 4898993 | Process for preparing 2-tert-butyl-4-methoxyphenol A process is described which permits to prepare substantially pure 2-tert-butyl-4-methoxyphenol, by reacting 4-bromo-2-tert-butylphenol with a methoxide in an organic solvent. The process permits to obtain a substantially pure 2-isomer, and avoids the nee... | 02/06/1990 |
| 4846998 | Cyclohexane derivatives Cyclohexane derivatives of the formula I in which R1 and R2 are each an alkyl group having 1-10 C atoms, in which one or two non-adjacent CH2 groups can also be replaced by O atoms and/or --CO-- groups and/or --CO--O-- groups a... | 07/11/1989 |
| 4814519 | Production of ethers from olefins A process for the production of ethers from an olefin containing feedstock. The process includes two-stages for the production of ethers which comprises, in a first stage, isomerizing an olefin containing feedstock over a thermally stable layered metal ox... | 03/21/1989 |
| 4757051 | 2-tert-butyl-4-methylcyclohexanol derivatives, their preparation and their use as scents Novel 2-tert-butyl-4-methylcyclohexanol derivatives of the general formula I ##STR1## where R1 is alkyl of 1 to 3 carbon atoms or an acyl group ##STR2## where R2 is alkyl of 1 to 5 carbon atoms, and a process for their ... | 07/12/1988 |
| 4710316 | Aldehydes, acetals, alcohols and ethers having 3-methyl- or 3,5-dimethyl-benzyl groups, their manufacture and perfume materials containing same Compounds of the general formula (I) ##STR1## and compounds of the general formula (II) ##STR2## in which R1 represents --OH, --CH2 OH, --CH2 --OCH3, --CHOH--CH3, --CHO or --CH(OCH3 | 12/01/1987 |
| 4704481 | Process for the desulphurization of mercaptans Benzylic and aromatic mercaptans are desulphurized by contacting the mercaptan with carbon monoxide at elevated temperatures in the presence of an aqueous hydrocarbon and a cobalt carbonyl catalyst.... | 11/03/1987 |
| 4700005 | Preparation of phenolic ethers Phenolic ethers are produced by reacting a phenol with a compound selected from an alkyl halide, an aryl halide, a dialkyl sulphate and a diaryl sulphate in the presence as catalyst of an amidine.... | 10/13/1987 |
| 4675454 | Catalytic etherification of phenols to alkyl aryl ethers A process for etherifying phenols comprising reacting phenols at elevated temperature and pressure with a reactant selected from the group consisting of alcohol, ether and mixtures thereof in the presence of a catalyst comprising a sulfated oxide of a Gro... | 06/23/1987 |
| 4675455 | Catalytic etherification of phenols to alkyl aryl ethers A process for etherifying phenols comprising reacting phenols at elevated temperature and pressure with a reactant selected from the group consisting of alcohol, ether and mixtures thereof in the presence of a catalyst comprising a sulfated oxide of a Gro... | 06/23/1987 |
| 4675456 | Catalytic etherification of phenols to alkyl aryl ethers A process for etherifying phenols comprising reacting phenols at elevated temperature and pressure with a reactant selected from the group consisting of alcohol, ether and mixtures thereof in the presence of a catalyst comprising a sulfated oxide of a lan... | 06/23/1987 |