Patents by Inventor Erik Lueddecke
Erik Lueddecke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20100041607Abstract: The present invention relates to unctuous composition containing at least one solid active ingredient, at least one hydrophobic protective colloid and at least one edible oil. The active ingredient is preferably a carotenoid. The preferred protective colloids are prolamines. The invention compositions are simple to produce, have good bioavailability and dyestuff yield, and are used an addition to animal feed agents, foods, and dietary supplements and pharmaceutical and cosmetic agents.Type: ApplicationFiled: January 15, 2008Publication date: February 18, 2010Applicant: BASF SEInventors: Jesper Feldthusen Jensen, Christian Köpsel, Helmut Auweter, Ingrid Martin, Angelika-Maria Pfeiffer, Erik Lüddecke, Dieter Feuerstein
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Patent number: 7105176Abstract: A process is described for producing solid preparations of at least one water-soluble, sparingly water-soluble or water-insoluble active compound suitable for the food and animal feed sectors or for pharmaceutical and cosmetic applications. In addition, the invention relates to oily suspensions in which these preparations are present as disperse phase, and to the use of these preparations as additive to animal feeds, foods, pharmaceuticals and cosmetic preparations.Type: GrantFiled: November 19, 2001Date of Patent: September 12, 2006Assignee: BASF AktiengesellschaftInventors: Helmut Auweter, Heribert Bohn, Erik Lüddecke, Willy Hinz, Frank Runge, Angelika-Maria Pfeiffer
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Patent number: 7070812Abstract: The invention relates to a process for producing dry powders of one or more carotenoids by a) dispersing one or more carotenoids in an aqueous molecular or colloidal solution of a mixture of lactose and a protective colloid and b) converting the dispersion which has formed into a dry powder by removing the water and, where appropriate, additionally used solvents and drying, where appropriate in the presence of a coating material, wherein at least one soybean protein is used as protective colloid in process step a).Type: GrantFiled: January 29, 2002Date of Patent: July 4, 2006Assignee: BASF AktiengesellschaftInventors: Frank Runge, Erik Lüddecke, Angelika-Maria Pfeiffer
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Patent number: 6827941Abstract: Carotenoid aggregates are useful as colorants for foods and for cosmetic and pharmaceutical preparations.Type: GrantFiled: January 7, 1999Date of Patent: December 7, 2004Assignee: BASF AktiengesellschaftInventors: Erik Lüddecke, Helmut Auweter, Loni Schweikert
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Patent number: 6639113Abstract: A process is described for preparing dry powders of one or more oxygenated carotenoids by a) dispersing one or more oxygenated carotenoids in an aqueous molecular dispersion or colloidal dispersion of a protecting colloid and b) converting the dispersion formed into a dry powder by removing the water and any solvents additionally used and drying, in the presence or absence of a coating material, which comprises using as protecting colloid in process step a) at least one partially hydrolyzed soybean protein having a degree of hydrolysis greater than 5%.Type: GrantFiled: December 17, 2001Date of Patent: October 28, 2003Assignee: BASF AktiengesellschaftInventors: Frank Runge, Erik Lüddecke, Helmut Auweter, Angelika-Maria Pfeiffer, Willy Hinz
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Patent number: 6375873Abstract: The invention relates to a process and an apparatus for producing stably fine-particle powders. The invention starts from a process for producing stably fine-particle powders in which one or more substances A and one or more substances B are dissolved in supercritical fluids, and the solutions are decompressed along a holdup section. In the process, substances A and B are each dissolved in separate supercritical compressible fluids, and the holdup sections interpenetrate, with the solubility limit of A in the appropriate fluid being exceeded at an earlier time than is the solubility limit of B in the appropriate fluid.Type: GrantFiled: December 13, 1999Date of Patent: April 23, 2002Assignee: BASF AktiengesellschaftInventors: Christian Lockemann, Erik Lüddecke, Dieter Horn
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Patent number: 6296877Abstract: Preparation of a stable aqueous dispersion, or a stable water-dispersible dry powder, of xanthophylls, which comprises a) preparing a molecularly dispersed solution of at least one xanthophyll, with or without an emulsifier and/or an edible oil, in a water-miscible organic solvent, or a mixture of water and a water-miscible organic solvent, at above 30° C., b) mixing this solution with an aqueous solution of a mixture of protective colloids, b1) in which the mixture comprises at least one low-molecular-weight protective colloid component and at least one high-molecular-weight protective colloid component, whose mean molecular weights differ by at least 10,000, b2) the solvent component being transferred to the aqueous phase and the hydrophobic phase of the xanthophyll being formed as a nanodispersed phase c) and if appropriate, to prepare a water-dispersible dry powder, freeing the resulting dispersion from the solvent and the water and drying it in the presence or absence of a coating material.Type: GrantFiled: June 8, 1999Date of Patent: October 2, 2001Assignee: BASF AktiengesellschaftInventors: Helmut Auweter, Heribert Bohn, Erik Lüddecke
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Patent number: 5700471Abstract: Process for the production of fine-particle, essentially amorphous dye or drug preparations by converting a relatively coarse-particle dispersion or a solution into a colloidal dispersion in water, where the colloidal dispersion is generated at a temperature above the melting point of the dye or drug by admixing appropriately hot water (where appropriate under pressure) or an aqueous protective colloid solution so that an emulsion of a melt in aqueous medium is produced and is immediately spray-dried or converted by cooling into a suspension.Type: GrantFiled: December 18, 1995Date of Patent: December 23, 1997Assignee: BASF AktiengesellschaftInventors: Lutz End, Dieter Horn, Erik Lueddecke
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Patent number: 5486904Abstract: The free resin particles which present problems in papermaking are determined according to number and size in order to bind them to the wood fibers by adding assistants and hence render them harmless. For this purpose, a paper stock suspension is prepared and the resin particles are separated from said suspension and then marked with a fluorescent dye and isolated. The light signals emitted by the individual resin particles after excitation are detected for determination of number and size.Type: GrantFiled: June 7, 1993Date of Patent: January 23, 1996Assignee: BASF AktiengesellschaftInventors: Dieter Horn, Erik Lueddecke, Alfred Gierulski, Thomas Kroehl, Primoz Lorencak
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Patent number: 5453447Abstract: A process for the continusous preparation of Beta-carotene together with an emulsifier by briefly heating Beta-carotene together with an emulsifier to give a homogeneous solution, rapidly cooling the latter to below 100.degree. C. by adding water, and subsequently adjusting to the required final concentration of Beta-carotene, comprises pumping a suspension, which has been preheated from 20.degree. to 80.degree. C., of 1 to 40% by weight of Beta-carotene in an emulsifier through a heating coil located in a heat transfer oil, where the solubilization mixture is at from 120.degree. to 180.degree. C. and the residence time is from 10 to 300 seconds, and subjecting the homogenous solution to turbulent mixing in a mixing chamber with an amount of water at from 10.degree. to 80.degree. C. to result in a solubilizate which contains from 0.5 to 6% by weight of Beta-carotene and is, if necessary, diluted to the required final concentration.Type: GrantFiled: October 1, 1991Date of Patent: September 26, 1995Assignee: BASF AktiengesellschaftInventors: Lutz End, Dieter Horn, Erik Lueddecke, Jachim U. Schneider, Peter P. Hoppe, Friedrich-Wilhelm Rensmann
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Patent number: 4844934Abstract: Water-disperable carotenoid formulations are prepared by dissolving the carotenoid in a carrier oil at elevated temperatures until saturation is achieved, rapidly emulsifying the solution with an aqueous protective colloid and then removing the water, by a process in which the protective colloid used is a mixture of an ester of a long-chain fatty acid with ascorbic acid and a starch product which is soluble in cold water.The produce can be used for coloring foods and is stable to creaming.Type: GrantFiled: March 20, 1987Date of Patent: July 4, 1989Assignee: BASF AktiengesellschaftInventors: Erik Lueddecke, Dieter Horn
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Patent number: 4637716Abstract: In a fiber-optical Doppler anemometer for measurement of fluctuating light or the Doppler broadening of laser light scattered by a scattering medium, for example by particles in motion, coherent laser light is passed via a fiber-optical coupler (1) and a submerged fiber-optical probe (2) into the scattering medium, and the light scattered back by the scattering medium is picked up by the submerged fiber-optical probe (2), branched by the fiber-optical coupler (1) and passed to a photodetector (3).Type: GrantFiled: September 20, 1983Date of Patent: January 20, 1987Assignee: BASF AktiengesellschaftInventors: Helmut Auweter, Dieter Horn, Erik Lueddecke
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Patent number: 4522743Abstract: Finely divided, pulverulent carotinoid or retinoid compositions, in which the carotinoid or retinoid essentially has a particle size of less than 0.5 micron, are prepared by a process wherein a carotinoid or retinoid is dissolved in a volatile, water-miscible, organic solvent at from 50.degree. C. to 200.degree. C., if necessary under superatmospheric pressure, within the space of less than 10 seconds. The carotinoid is immediately precipitated, in a colloidally disperse form, from the molecularly disperse solution by rapidly mixing the latter with an aqueous solution of a swellable colloid at from 0.degree. C. to 50.degree. C., and the resulting dispersion is freed from the solvent and the dispersing medium in a conventional manner.Type: GrantFiled: May 10, 1982Date of Patent: June 11, 1985Assignee: BASF AktiengesellschaftInventors: Dieter Horn, Hans W. Schmidt, Walter Ditter, Horst Hartmann, Erik Lueddecke, Klaus Schmieder
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Patent number: 4511685Abstract: Chroman derivatives of the general formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each H or C.sub.1 -C.sub.4 -alkyl, R.sup.5 is C.sub.10 -C.sub.30 -alkyl or C.sub.10 -C.sub.30 -alkenyl, X and Y are each O, NH or S, m is 0, 1, 2 or 3 and n and r are each 0 or 1, the preparation of compounds I by various methods known per se, and the use of the compounds as stabilizers for organic materials.Type: GrantFiled: February 26, 1981Date of Patent: April 16, 1985Assignee: BASF AktiengesellschaftInventors: Axel Nissen, Michael Horner, Dieter Horn, Erik Lueddecke, Gernot Teege
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Patent number: 4404304Abstract: Novel chroman derivatives ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are each H or C.sub.1 -C.sub.4 -alkyl, R.sup.6 and R.sup.7 are each H, C.sub.1 -C.sub.4 -alkyl or aryl, m is 1, 2 or 3, and R.sup.8 is alkyl or alkenyl of up to 30 carbon atoms, the preparation of these compounds, and their use as stabilizers for organic materials.Type: GrantFiled: January 28, 1982Date of Patent: September 13, 1983Assignee: BASF AktiengesellschaftInventors: Michael Horner, Dieter Horn, Erik Lueddecke, Gernot Teege
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Patent number: 4328000Abstract: Disclosed is the polyelectrolytic titration of serum lipoproteins, the negative surface charge of the latter being determined quantitatively by adding an excess amount of a polycation in aqueous solution to the particular serum lipoprotein and then back-titrating the positive charge, of the polycation, which has not been neutralized by the negative surface charge, against a chromotropic polyanion, in the presence of a metachromatic dye as the indicator. The method according is used for the diagnosis of lipometabolic disorders.Type: GrantFiled: August 15, 1980Date of Patent: May 4, 1982Assignee: BASF AktiengesellschaftInventors: Dieter Horn, Erik Lueddecke, Claus C. Heuck