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Meinolf

Meinolf Blawat, Hannover DE

Patent application numberDescriptionPublished
20100199028Non-volatile storage device with forgery-proof permanent storage option - The invention is related to non-volatile storage devices.08-05-2010
20110123167Method and device for linking multimedia data - It is desired to link photo data and video data taken by a digital camcorder. Therefore, there is provided a device and method for linking multimedia data, wherein linking information is formed on the basis of first and/or second multimedia data. The linking information is stored on a recording medium together with the first multimedia data. The second multimedia data may be stored together with respective linking information to the first multimedia data on a second recording medium. Thus, a camera-man while recording is able to set up logo or index pictures for a video film.05-26-2011
20110216584Electromechanical switch, storage device comprising such an electromechanical switch and method for operating the same - An electromechanical switch is described, which comprises a conductive body and a plurality of carbon nanotubes being separate to each other, each of the carbon nanotubes being connected to at least one common terminal electrode with at least one of its ends, wherein in an open state of the switch each of the carbon nanotubes substantially projects along a surface of the conductive body and keeps up a gap to said surface, and wherein in a closed state of the switch at least one carbon nanotube is bend in a direction of the surface to close an electrical contact between said terminal electrode and the conductive body. The size of the gap between the respective carbon nanotube and the surface is different for each one of the plurality of carbon nanotubes.09-08-2011
20120110238DATA SECURITY IN SOLID STATE MEMORY - The invention concerns data security in solid state memory. The solid state memory contains at least one specific area directed to storing sensitive information. The invention is for handling security relevant data in solid state memories and to protect the data from unauthorized access. According to the invention, the solid state memory includes a security element for deleting the specific memory area at start up.05-03-2012
20120319729FIELD PROGRAMMABLE GATE ARRAY - A field programmable gate array is disclosed, which comprises at least one logic element having at least one switching element. The switching element comprises a static support element and a movable connecting element for providing a non-volatile electrical connection.12-20-2012

Patent applications by Meinolf Blawat, Hannover DE

Meinolf Brackhagen, Walsrod DE

Patent application numberDescriptionPublished
20130012696NEW HIGH VISCOSITY CARBOXYMETHYL CELLULOSE AND METHOD OF PREPARATION - The invention is directed to a process of preparing carboxymethyl cellulose comprising the steps of (a) reacting non-regenerated cellulose with an alkalization agent in the presence of water and isopropyl alcohol and (b) reacting the alkalized cellulose with monohaloacetic acid or a salt thereof, wherein 1.0 to 1.6 mol of the alkalization agent and 15 to 30 mol of water are used in step (a) and 0.5 to 0.8 mol of monohaloacetic acid or a salt thereof are used in step (b), each based on 1 mol of anhydroglucose unit of the cellulose. The invention also relates to carboxymethyl cellulose prepared by that process.01-10-2013

Meinolf Brackhagen, Walsrode DE

Patent application numberDescriptionPublished
20100292460WATER-DISPERSIBLE POLYSACCARIDE DERIVATIVES OF REDUCED GLYOXAL CONTENT, AND A PROCESS FOR DECREASING THE GLYOXAL CONTENT IN GLYOXAL-CROSSLINKED POLYSACCHARIDE DERIVATIVES - A description is given of glyoxal-treated polysaccharide derivatives which, to decrease the unbound glyoxal, are treated with an aqueous solution of one or more water-soluble aluminium salts, or one or more water-soluble borates, or a combination of one or more water-soluble aluminium salts and one or more water-soluble borates, and, if appropriate, with suitable buffer substances to set the pH, and then dried.11-18-2010
20110111229TERNARY MIXED ETHERS - The invention relates to innovative cellulose derivatives with low surface swelling in aqueous suspension, with high relative high-shear viscosity, and with high thermal flocculation point in water, and also to their use in building-material systems.05-12-2011
20110113989METHYLHYDROXYPROPYLCELLULOSE (MHCP) FOR MINERAL-BOUND BUILDING MATERIAL SYSTEMS - The present invention relates to the preparation of methylhydroxypropylcellulose (MHPC) and the use thereof in mineral-bound building material systems, preferably in gypsum-bound building material systems, particularly preferably in gypsum machine plaster.05-19-2011

Patent applications by Meinolf Brackhagen, Walsrode DE

Meinolf Lange, Bielefeld DE

Patent application numberDescriptionPublished
20100087635PURIFICATION OF OLIGONUCLEOTIDES - A method for purifying a protected oligonucleotide comprising the steps of: 04-08-2010
20110065909SYNTHESIS OF OLIGONUCLEOTIDES - A method for preparing an oligonucleotide comprising the steps of03-17-2011
20110201799Synthesis of oligonucleotides - A method for preparing an oligonucleotide comprising the steps of a) providing a hydroxyl containing compound having formula (1), wherein B is a heterocyclic base, and radicals R08-18-2011

Patent applications by Meinolf Lange, Bielefeld DE

Meinolf Lange, Halle/westf DE

Patent application numberDescriptionPublished
20100069623Method for preparing oligonucleotides - A solution phase synthesis method for preparing an oligonucleotide, wherein at least some of the reagents are solid supported. The method suitable for large-scale synthesis comprises coupling a protected compound with a nucleotide derivative having a protection group in the presence of a solid supported activator to give an elongated oligonucleotide with a P(III)-internucleotide bond; optionally processing the elongated oligonucleotide by capping by reaction with a solid supported capping agent and/or by oxidizing or sulfurizing by reaction of the oligonucleotide with a solid supported oxidizing or sulfurization reagent; and removing the protection group. The coupling may include reacting a 3′-protected compound of formula:03-18-2010
20110224424Method for preparing oligonucleotides - A solution phase synthesis method for preparing an oligonucleotide, wherein at least some of the reagents are solid supported. The method suitable for large- scale synthesis comprises coupling a protected compound with a nucleotide derivative having a protection group in the presence of a solid supported activator to give an elongated oligonucleotide with a P(III)-internucleotide bond; optionally processing the elongated oligonucleotide by capping by reaction with a solid supported capping agent and/or by oxidizing or sulfurizing by reaction of the oligonucleotide with a solid supported oxidizing or sulfurization reagent; and removing the protection group. The coupling may include reacting a 3′-protected compound of formula:09-15-2011

Patent applications by Meinolf Lange, Halle/westf DE

Meinolf Lange, Starzach-Felldorf DE

Patent application numberDescriptionPublished
20120316328SYNTHESIS OF PHOSPHITYLATED COMPOUNDS USING A QUATERNARY HETEROCYCLIC ACTIVATOR - A method for preparing a phosphitylated compound comprising the step of:—reacting a hydroxyl containing compound with a phosphitylating agent in the presence of an activator having the formula (I) wherein R=alkyl, cycloalkyl, aryl, aralkyl, heteroalkyl, heteroaryl R12-13-2012
20120322994SYNTHESIS OF OLIGONUCLEOTIDES - A method for preparing an oligonucleotide comprising the steps of 12-20-2012

Meinolf Rameil, Lennestadt DE

Patent application numberDescriptionPublished
20110090757APPARATUS FOR MIXING A POWDERY MEDIUM WITH A FLUID - An apparatus for mixing a powdery medium with a fluid includes a mixing vessel which can be filled with the fluid and which has a feed for the fluid, an inlet for the powdery medium and an outlet for the fluid mixed with the powdery medium, and at least one mixing screw arranged inside the mixing vessel and driven by a rotary drive.04-21-2011
20110255363METERING APPARATUS AND METHOD FOR INTRODUCING A POWDERY MEDIUM INTO A FLUID - A metering apparatus for introducing a powdery medium into a fluid includes a mixing vessel that can be filled with a fluid and a metering unit for the powdery medium. The metering unit has an inlet for the powdery medium, an inlet for a compressed gas and an outlet extending towards the mixing vessel, through which the powdery medium and the compressed gas can be discharged into the mixing vessel.10-20-2011
20110255365APPARATUS FOR MIXING A POWDERY MEDIUM WITH A FLUID - An apparatus for mixing a powdery medium with a fluid includes a mixing vessel which can be filled with the fluid and which has a feed for the fluid, an inlet for the powdery medium and an outlet for the fluid mixed with the powdery medium, and at least one mixing screen which divides the mixing vessel into a first section which includes the feed and a second section which includes the inlet.10-20-2011
20120087738EARTH DRILLING DEVICE - The invention relates to an earth drilling device (04-12-2012
20120170402METERING APPARATUS AND METHOD FOR INTRODUCING A POWDERY MEDIUM INTO A FLUID - The application relates to a metering apparatus for introducing a powdery medium into a fluid, comprising a guide device for guiding the fluid and a metering device, said metering device being arranged above the guide device such that the powdery medium released by the metering unit is scattered onto the surface of the fluid.07-05-2012

Meinolf Weidenbach, Drochtersen DE

Patent application numberDescriptionPublished
20080306290Process for Epoxidizing Propene - The present invention provides a process for the epoxidation of propene which comprises reacting propene with hydrogen peroxide in the presence of methanol as solvent and a titanium zeolite catalyst, the process further comprising separating propylene oxide from the reaction mixture to obtain a mixture comprising methanol, water, at least one carboxylic acid and at least one carbonyl compound, wherein the at least one carboxylic acid is at least partially neutralized, said process optionally comprising a hydrogenation stage.12-11-2008
20090118523Separation of Propylene Oxide from a Mixture Comprising Propylene Oxide and Methanol - A method of separating propylene oxide from a mixture (M) comprising propylene oxide and methanol, said method comprising: (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing an extracting solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column as top stream; (iv) withdrawing a bottoms stream from said extractive distillation column; (v) compressing the top stream obtained overhead in (iii) by means of at least one compressor to give a compressed vapor.05-07-2009
20100081834 PROCESS FOR THE EPOXIDATION OF AN OLEFIN WITH IMPROVED ENERGY BALANCE - The invention relates to a process for the epoxidation of an olefin comprising 04-01-2010
20100305369PROCESS FOR THE PREPARATION OF AN OLEFIN OXIDE - The present invention relates to a continuous process for the preparation of an olefin oxide wherein an olefin is reacted with a hydroperoxidein the presence of a catalyst, and wherein the reaction which is carried out in at least three reactors operated in parallel is controlled by specifically adjusting the catalyst loads in the reactors.12-02-2010

Patent applications by Meinolf Weidenbach, Drochtersen DE

Meinolf Weidenbach, Stade DE

Patent application numberDescriptionPublished
20110065939METHOD FOR THE SEPARATION OF ACETONITRILE FROM WATER - A method for separating acetonitrile from water, comprising (i) providing a stream S1 containing at least 95 wt.-%, based on the total weight of S1, acetonitrile and water, wherein the weight ratio of acetonitrile:water is greater than 1; (ii) adding a stream P, comprising at least 95 wt.-% C3, based on the total weight of stream P, to S1 to obtain a mixed stream S2, C3 being propene optionally admixed with propane with a minimum weight ratio of propene:propane of 7:3; (iii) subjecting S2 to a temperature of 92° C. at most and a pressure of at least 10 bar, obtaining a first liquid phase L1 essentially consisting of C3, acetonitrile, and water, and a second liquid phase L2 essentially consisting of water and acetonitrile wherein the weight ratio of acetonitrile:water in L2 is less than 1; (iv) separating L1 from L2.03-17-2011
20120065413PROCESS FOR PRODUCING PROPYLENE OXIDE - A process for producing propylene oxide comprising reacting propene with hydrogen peroxide in the presence of a catalyst to give a mixture (G1) comprising propylene oxide, unreacted propene, and oxygen; separating propylene oxide from mixture (G1) to give a mixture (GII) comprising propene and oxygen; and adding hydrogen to mixture (GII) and reducing the oxygen comprised in mixture (GII) at least partially by reaction with hydrogen in the presence of a catalyst comprising copper in elemental and/or oxidic form on a support, wherein copper is present on the support in an amount of 30 to 80 wt.-% based on the whole catalyst and calculated as CuO.03-15-2012