...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.
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| Number | Title | Issue Date |
| 7323609 | Corrosion and gas hydrate inhibitors having improved water solubility and increased biodegradability The invention provides the use of compounds of the formula (1) where R1, R2 are each independently C1- to C22-alkyl, C2- to C22-alken... | 01/29/2008 |
| 7141537 | Mixture of fluorinated polyethers and use thereof as surfactant The present invention provides the use of a fluorinated polyether composition as a surfactant, said fluorinated polyether composition comprising a mixture of fluorinated polyethers of the formula: (Rf)n—Xw—Z (I) | 11/28/2006 |
| 7138546 | Compounds and compositions for delivering active agents Compounds and compositions for the delivery of active agents are provided. Methods of administration and preparation are provided as well. ... | 11/21/2006 |
| 6812368 | Diastereoselective hydrogenation of 1,3-hydroxyketones The invention relates to a novel process of diastereoselective hydrogenation of 1,3-hydroxyketones of formula (I) wherein R, R′ and R″ are as defined in claim 1 which is carried out in a solvent in the prese... | 11/02/2004 |
| 6770679 | Compounds from epoxidised nitriles, process for their production and use as cleaning agents The present invention relates to nonionic compounds of the polyoxymethylene type that are low-foaming and can be used as surfactants, especially in cleaning compositions at an alkaline pH. They are obtained from unsaturated nitriles, that have been epoxidized with e... | 08/03/2004 |
| RE38506 | Potent inducers of terminal differentiation and methods of use thereof The present invention provides the compound having the structure: wherein each of R1 and R2 are independently the same as or different from each other; when R1 and R2 are the same, each i... | 04/20/2004 |
| 6689910 | Polymerization of olefins Olefins containing selected functional groups such as silyl, ether and alkenyl, and often containing a blocking group, may be copolymerized with unsubstituted olefins such as ethylene and propylene in the presence of certain coordination compounds of nick... | 02/10/2004 |
| 6562995 | Delta dicarbonyl compounds and methods for using the same Amidomethyl esters, carbonylmercaptomethyl esters, keto-containing esters, amidomethyl thioesters, amidomethyl amides, and methylene dithioesters are disclosed. The novel compounds have two carbonyl groups connected by a linking moiety having an oxygen, s... | 05/13/2003 |
| 6492545 | Process for producing optically active alcohol A novel process in which an optically active alcohol compound having a desired absolute configuration and a high optical purity can be obtained by asymmetrically hydrogenating a ଲ-keto acid compound through a simple operation. An optically active al... | 12/10/2002 |
| 6423748 | Amido polybiguanides and the use thereof as antimicrobial agents Amido polybiguanides and their use as antimicrobial agents in pharmaceutical compositions are disclosed. A method of synthesis of amido polybiguanides is also disclosed. The amido polybiguanides are useful in the preservation of pharmaceutical composition... | 07/23/2002 |
| 6372918 | Compound for inhibiting corrosion The invention relates to compounds of the formula 1 R1 --O--(A--O)x --(CH2)y --R2 (1) in which R1 is branched or straight-chain C4 -C30 -alkyl, C4 -C30 -a... | 04/16/2002 |
| 6353012 | 15-Hydroxyeicosatetraenoic acid-related compounds and methods of use HETE derivatives and methods of their use for treating dry eye are disclosed.... | 03/05/2002 |
| 6312481 | Fuel compositions Monoamide-containing polyether alcohol compounds of the formula: ##STR1## wherein R1, R2 and R3 are each independently selected from hydrogen, hydrocarbyl of 1 to 100 carbon atoms, substituted hydrocarbyl of 1 to 100 carbo... | 11/06/2001 |
| 6306463 | Citric acid tri-alkylamide surfactants This invention provides water-based compositions which are essentially free of hydrocarbon solvents, particularly coating, ink, fountain solution, adhesive, agricultural and electronics cleaning compositions, manifesting reduced equilibrium and dynamic su... | 10/23/2001 |
| 6255343 | 2,2-difluoro 15-hydroxyeicosatetraenoic acid analogs and methods of use 2,2-Difluoro HETE derivatives and methods of their use for treating dry eye are disclosed.... | 07/03/2001 |
| 6235933 | Process for preparing ଲ-hydroxyalkylamides The invention relates to a process for preparing a ଲ-hydroxyalkylamide, in which alkyl esters are reacted with ଲ-aminoalcohols in the absence of solvents and in the presence of basic catalysts, where, to improve the selectivity, the ratio of ... | 05/22/2001 |
| 6232492 | Process for the preparation of N-aryl-N-hydroxamides The invention relates to a method for preparing n-aryl-n-hydroxamides, whereby arylhydroxamines are reacted with ketones to n-aryl-n-hydroxamides, without using acyloxindoles-generating solvents.... | 05/15/2001 |
| 6211122 | Carboxylic compositions and derivatives thereof and use as lubricating oil and fuel additives A carboxylic composition comprising hydrocarbon substituted carboxylic acylating agents prepared by reacting a polyolefin and a terpolymer, simultaneously or individually in any order, with at least one carboxylic reactant selected from the group consisti... | 04/03/2001 |
| 6160173 | Process for the recovery of lactic acid esters and amides from aqueous solutions of lactic acid and/or salts thereof The invention provides a process for the recovery of purified lactic acid values from an aqueous feed solution containing lactic acid, lactic acid salt, or mixtures thereof, comprising: bringing the feed solution into contact with a substantially immiscib... | 12/12/2000 |
| 6147036 | Process for preparing compositions useful as intermediates for preparing lubricating oil and fuel additives and derivatives thereof A process for reacting certain carboxylic reactants with olefinic compounds then reacting the intermediate prepared thereby with ammonia, a hydrazine or an amine, and/or a reactive metal or reactive metal compound, products prepared thereby and, additive ... | 11/14/2000 |
| 6124501 | Process for preparing lactamide A process for preparing lactamide with a high conversion and a high selectivity without the deterioration of a catalytic activity in a short time, which comprises subjecting lactonitrile to a hydrating reaction in the presence of (A) a catalyst including ... | 09/26/2000 |
| 6039963 | Ceramide compounds, process for their preparation and use The present invention relates to compounds corresponding to the formula: ##STR1## the compounds being in the form of mixtures of isomers at least on the amino alcohol part of the said formula (I). The invention also relates to a process for their pre... | 03/21/2000 |
| 6017426 | Process for the preparation of ceramide-type compounds A process for the preparation of ceramide-type compounds by reacting, an amino alcohol with a carboxylic acid of defined structures, where the reaction is conducted with irradiation with microwaves and at a temperature of less than or equal to 180° C.... | 01/25/2000 |
| 5998668 | Optically active compound and process for producing the same An optically active (2S,3R)-2-(3'-hydroxyacyl)aminoalkane-1,3-diol and a process for producing the same are disclosed. The compound is represented by the following general formula (1): ##STR1## wherein R1 represents a linear or branched, s... | 12/07/1999 |
| 5976894 | Combinatorial amide alcohol libraries Combinatorial chemical libraries of the Formula [S]-C(O)-L'-Z containing dihyroxy amides and hydroxyphosphonate amides are disclosed, in which [S] represents a solid support and -L'-Z is a linker/ligand residue. In these libraries, Z is ##STR1## ... | 11/02/1999 |
| 5959147 | Organic sulfide compound and method for production thereof This invention concerns a novel organic sulfide compound obtained by the reaction of a mercapto alkanol such as 2-mercapto ethanol with an unsaturated amide such as (meth)acrylamide, maleic acid diamide, or fumaric acid diamide and a method for the produc... | 09/28/1999 |
| 5948418 | Sulfur-based amides and bis-amides useful against skin disorders Novel sulfhydryl group-containing amides and disulfide group-containing bis-amides useful for treating or preventing an abnormal biological condition or a disease, and/or improving the texture or appearance of the skin, as well as compositions containing ... | 09/07/1999 |
| 5945393 | Nonionic gemini surfactants Novel nonionic gemini surfactants are extremely effective emulsifiers for oil-in-water emulsions that provide improved detergency at even low concentration levels. The surfactants are characterized by the formula: ##STR1## wherein R1 is in... | 08/31/1999 |
| 5942644 | Precursors for the production of chiral vicinal aminoalcohols The disclosure describes new compositions of matter useful for the preparation of optically-active vicinal aminoalcohols. The compositions are chiral ଲ-hydroxycarboxamides, ଲ-hydroxyhydraxides, and ଲ-hydroxyhydroxamic acids.... | 08/24/1999 |
| 5880158 | Propionamide anticonvulsants The present invention is directed to a compound of the following formula: ##STR1## pharmaceutical compositions containing the same and the use thereof as an anticonvulsant.... | 03/09/1999 |
| 5869711 | Ceramide compounds, process for their preparation and use The present invention relates to compounds corresponding to the formula: ##STR1## the compounds being in the form of mixtures of isomers at least on the amino alcohol part of the said formula (I). The invention also relates to a process for their pre... | 02/09/1999 |
| 5855629 | Alkoxy acetic acid derivatives This invention provides alkoxy acetic acid derivatives of general formula I: ##STR1## wherein R is the residue of an amine, an aminoalcohol or a polyol linked to the or each --CHR'--CO-- moiety via an amide or ester linkage; R' is hydrogen or a C | 01/05/1999 |
| 5856279 | Acylated nitrogen compounds useful as additives for lubricating oil and fuel compositions A process for reacting certain carboxylic reactants and at least one aldehyde or ketone with olefinic compounds then reacting the product prepared thereby with ammonia, a hydrazine or an amine, products prepared thereby and, additive concentrates, lubrica... | 01/05/1999 |
| 5856519 | Chiral auxilary for stereoselective alkylations This invention relates to a method for the stereoselective synthesis of a 2-aryloxycarboxylic acid using a chiral auxiliary to enhance the stereoselectivity of the alkylation of the -halo acid with an aryloxy group.... | 01/05/1999 |
| 5847206 | Amphiphilic fluorine derivatives with telomeric structures; preparation procedure and biomedical applications New fluorinated derivatives useful as surfactants or in the transport of drug or markers, or in drug targeting, and preparations containing the derivatives, for medical, cosmetic and veterinary uses, having the formula: ##STR1## wherein RF | 12/08/1998 |
| 5808151 | Biphenylamido derivatives as melatonergic agents There is provided novel biphenylamido derivatives of the formula ##STR1## wherein Z is ##STR2## and Y is H or Z is H and Y is ##STR3## n is 0 or 1; R is C1-6 alkyl; R1 is C1-3 alkyl, C3-6 cycloal... | 09/15/1998 |
| 5779742 | Acylated nitrogen compounds useful as additives for lubricating oil and fuel compositions A process for reacting certain carboxylic reactants and at least one aldehyde or ketone with olefinic compounds then reacting the product prepared thereby with ammonia, a hydrazine or an amine, products prepared thereby and, additive concentrates, lubrica... | 07/14/1998 |
| 5770188 | Glucoxide derivatives for enzyme modification, lipid-coated enzymes, method of producing such enzymes and antifouling paint composition This invention is related to glucoxide derivatives for enzyme modification of the following general formula (1), to provide a lipid-coated enzyme showing high activity in organic solvents; antifouling paint compositions containing a lipid-coated enzyme be... | 06/23/1998 |
| 5736578 | Ethylamido fluorenes and improved method of making same Novel substituted fluorene compunds of Formula I are active as melatonergic agents: ##STR1## wherein: X=H, halogen, OH or OZ; Z=C1-6 alkyl; --(CH2)m --CF3 (m=0-2); CD3 ; or ##STR2## n=1 or 2... | 04/07/1998 |
| 5728869 | Processes for the preparation of pesticides and intermediates There is disclosed a process for the preparation of an indanylamine compound of general formula ##STR1## wherein R1 represents an optionally substituted alkyl group, and R2, R3 and R4 independently represen... | 03/17/1998 |