...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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 |
| 7270985 | Process for the preparation of aldehyde from a proteinous source for industrial applications A process is disclosed to treat the protein hydrolysate, prepared conventionally from a proteinous source, with alkali metal hydride to obtain alcohol which is subsequently oxidized to obtain aldehyde under certain specified conditions, thereby converting large prot... | 09/18/2007 |
| 7115387 | Process for the preparation of aldehyde from a proteinous source for industrial applications A process is disclosed to treat the protein hydrolysate, prepared conventionally from a proteinous source, with alkyl halide to obtain alcohol which is subsequently oxidized to obtain aldehyde under certain specified conditions, thereby converting large protein mole... | 10/03/2006 |
| 6949681 | Intermediate for preparing glycopeptide derivatives This invention provides compounds of the formula: wherein A and B are as defined; and Fmoc is 9-fluorenylmethoxycarbonyl. Such compounds are useful as intermediates for preparing glycopeptide d... | 09/27/2005 |
| 6515137 | Catalytic processes employing chiral imidazolidinone-based catalyst composition Acid addition salts of imidazolidinones are provided as catalysts for transforming a functional group within a first reactant by reaction with a second reactant. Exemplary first reactants are ,ଲ-unsaturated carbonyl compounds such as ,... | 02/04/2003 |
| 6509506 | Two step synthesis of D- and L- -amino acids and D- and L- -amino aldehydes D- and L- -amino acids and D- and L--amino aldehydes are synthesized from olefin substrates in two steps. The first step is a catalyzed asymmetric aminohydroxylation addition reaction to the olefin substrate. The addition reaction is catalyz... | 01/21/2003 |
| 6486307 | Preparation of glucosamine hydrochloride A method of producing glucosamine hydrochloride from chitin by grinding the chitin to a very fine size and digestion with concentrated hydrochloric acid. The glucosamine hydrochloride is decolorized with activated charcoal, washed with ethanol and assayed... | 11/26/2002 |
| 6395916 | Ligands for metals and improved metal-catalyzed processes based thereon One aspect of the present invention relates to novel, electron-rich bidentate ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in transition metal-catalyzed carbon-heteroatom ... | 05/28/2002 |
| 6291702 | Azulenyl nitrone spin trapping agents, methods of making and using same The present invention relates to chromotropic nitrone spin trapping agents, methods of making these agents, compositions comprising same, and methods of their use. In particular, azulenyl nitrones of the present invention are effective agents for trapping... | 09/18/2001 |
| 6197825 | Azulenyl nitrone spin trapping agents, methods of making and using same The present invention relates to chromotropic nitrone spin trapping agents, methods of making these agents, compositions comprising same, and methods of their use. In particular, azulenyl nitrones of the present invention are effective agents for trapping... | 03/06/2001 |
| 5543560 | Hydrogenolytic reduction of peroxidic ozonolysis products A method for the hydrogenolytic reduction of peroxidic ozonolysis products to the corresponding carbonyl compounds in the presence of an inert organic diluting agent and in the presence of a monolith catalyst at hydrogen pressures of 0.01 to 2.0 MPa and a... | 08/06/1996 |
| 5530150 | Phosphine compound, complex containing the phosphine compound as ligand, process for producing optically active aldehyde using the phosphine compound or the complex, and 4-[(R)-1'-formylethyl]azetidin-2-one derivatives A phosphine compound represented by one of the formulas: ##STR1## wherein R1 and R2, which may be the same or different, each represent a phenyl group or a phenyl group substituted with a halogen atom or a lower alkyl group or t... | 06/25/1996 |
| 5489714 | Method of synthesizing 2,6-dinitro benzyl compounds Described is a method of preparing dinitrobis(hydroxymethyl)benzene, useful as a photoreactive monomer, from a derivative of stilbene. Also disclosed is a novel dinitrocarbomethoxybenzaldehyde compound useful as an intermediate.... | 02/06/1996 |
| 5449834 | Method of synthesizing 2,6-dinitro benzyl compounds Described is a method of preparing dinitrobis(hydroxymethyl)benzene, useful as a photoreactive monomer, from a derivative of stilbene. Also disclosed is a novel dinitrocarbomethoxybenzaldehyde compound useful as an intermediate.... | 09/12/1995 |
| 5329025 | 3-azido compound A new and practical method for synthesizing heterocyclic polyhydroxylated alkaloids using enzymatic aldol condensation and catalytic intramolecular reductive amination is disclosed.... | 07/12/1994 |
| 5082976 | Process for the preparation of benzaldehydes Benzaldehydes of the formula ##STR1## can be obtained by reaction of substituted ଲ-amino-styrenes of the formula ##STR2## in which R1, R2, R3, R4, R5, R8, R9, ... | 01/21/1992 |
| 4605749 | Production of aldehydes There is provided a process for the production of aldehydes wherein an oric halide is reacted with carbon monoxide at a superatmospheric pressure in the presence of a hydrogen donor and in the presence of a base and of a catalyst in a solvent system. Cat... | 08/12/1986 |
| 4544765 | Chloramphenicol derivatives Chloramphenicol derivatives are provided for use in the preparing of antigen conjugates for the production of antibodies specifically for chloramphenicol. Specifically, the aryl amino group is derivatized to introduce a non-oxocarbonyl group which is used... | 10/01/1985 |
| 4299985 | Selective oxoamination process This invention concerns the synthesis of linear alkyl primary amines from a-olefins via an oxoamination process comprising (a) hydrogen and carbon monoxide addition to olefinic substrates to obtain aldehyde-containing compounds in the presence of ligand-s... | 11/10/1981 |
| 4219660 | Conjugated diene derivatives There are disclosed herein derivatives of bisfunctionalized compounds, wherein said compounds have been formed by the introduction of a nitro group and a hydroxyl group in the form of an ester into a conjugated diene molecule by treatment of said conjugat... | 08/26/1980 |
| 4211727 | Reduction of carboxylic acid halides to aldehydes Carboxylic acid halides are reduced to the corresponding aldehydes using zinc borohydride or cadmium borohydride as the reducing agent.... | 07/08/1980 |
| 4036877 | Process for the production of aldehydes The invention relates to a process for the preparation of aldehydes by hydrogenating carboxylic chlorides of the general formula RCOCl, wherein R stands for alkyl, isoalkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, aromatic, heterocyclic or ... | 07/19/1977 |
| 3941846 | Preparation of nitrocarbonyl compounds A method of preparing a nitrocarbonyl having at least 4 carbon atoms corresponding to the formula: ##EQU1## by contacting a dinitroalcohol having at least 5 carbon atoms corresponding to the formula: ##EQU2## with an alkaline agent at a tem... | 03/02/1976 |