Patents by Inventor Dieter Lubda

Dieter Lubda 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).

  • Patent number: 8883001
    Abstract: This invention provides a separating agent for optical isomers, which has high asymmetry recognition ability and can be used particularly at a high flow rate when used for the separation of the optical isomers, and a separation column for optical isomers having the same. This invention provides: a separating agent for optical isomers which is used for separation of optical isomers in a sample comprising the optical isomers, which is comprising a monolithic inorganic type carrier having a meso pore formed on an inner wall surface of a specific macropore, and a polysaccharide or a polysaccharide derivative supported on the monolithic inorganic type carrier, wherein the meso pore has a pore size of 6 to 100 nm; and a separation column for optical isomers in which the separating agent for optical isomers is held in a column tube.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: November 11, 2014
    Assignees: Daicel Chemical Industries, Ltd., Merck Patent GmbH
    Inventors: Tatsushi Murakami, Akihiro Nakanishi, Dieter Lubda, Michael Schulte
  • Patent number: 8883002
    Abstract: This invention provides a separating agent for optical isomers, which has high asymmetry recognition ability and can be used particularly at a high flow rate when used for the separation of the optical isomers, and a separation column for optical isomers having the same. This invention provides: a separating agent for optical isomers which is used for separation of optical isomers in a sample comprising the optical isomers, which is comprising a monolithic inorganic type carrier having a meso pore formed on an inner wall surface of a specific macropore, and a polysaccharide or a polysaccharide derivative supported on the monolithic inorganic type carrier, wherein the meso pore has a pore size of 6 to 100 nm; and a separation column for optical isomers in which the separating agent for optical isomers is held in a column tube.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: November 11, 2014
    Assignees: Daicel Chemical Industries, Ltd., Merck Patent GmbH
    Inventors: Tatsushi Murakami, Akihiro Nakanishi, Dieter Lubda, Michael Schulte
  • Patent number: 8883011
    Abstract: The present invention relates to a process for the production of monolithic separating columns using monolithic moldings whose diameter is reduced by grinding, and to separating columns having improved separation efficiency produced in this way, and to the use thereof.
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: November 11, 2014
    Assignee: Merck Patent GmbH
    Inventors: Dieter Lubda, Karin Cabrera Perez, Klaus Kreher, Charles Roderick McIlwrick
  • Publication number: 20110094955
    Abstract: This invention provides a separating agent for optical isomers, which has high asymmetry recognition ability and can be used particularly at a high flow rate when used for the separation of the optical isomers, and a separation column for optical isomers having the same. This invention provides: a separating agent for optical isomers which is used for separation of optical isomers in a sample comprising the optical isomers, which is comprising a monolithic inorganic type carrier having a meso pore formed on an inner wall surface of a specific macropore, and a polysaccharide or a polysaccharide derivative supported on the monolithic inorganic type carrier, wherein the meso pore has a pore size of 6 to 100 nm; and a separation column for optical isomers in which the separating agent for optical isomers is held in a column tube.
    Type: Application
    Filed: December 27, 2010
    Publication date: April 28, 2011
    Inventors: Tatsushi MURAKAMI, Akihiro Nakanishi, Dieter Lubda, Michael Schulte
  • Publication number: 20110089095
    Abstract: This invention provides a separating agent for optical isomers, which has high asymmetry recognition ability and can be used particularly at a high flow rate when used for the separation of the optical isomers, and a separation column for optical isomers having the same. This invention provides: a separating agent for optical isomers which is used for separation of optical isomers in a sample comprising the optical isomers, which is comprising a monolithic inorganic type carrier having a meso pore formed on an inner wall surface of a specific macropore, and a polysaccharide or a polysaccharide derivative supported on the monolithic inorganic type carrier, wherein the meso pore has a pore size of 6 to 100 nm; and a separation column for optical isomers in which the separating agent for optical isomers is held in a column tube.
    Type: Application
    Filed: December 27, 2010
    Publication date: April 21, 2011
    Inventors: Tatsushi MURAKAMI, Akihiro Nakanishi, Dieter Lubda, Michael Schulte
  • Patent number: 7648761
    Abstract: The present invention relates to inorganic monolithic mouldings whose surface is coated with physi- or chemisorbed organic polymers, and to processes for the production of materials of this type. The materials according to the invention are highly suitable as sorbents for chromatography, in particular for high pressure liquid chromatography of biological materials.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: January 19, 2010
    Assignee: Merck Patent GmbH
    Inventors: Zöfre Bayram-Hahn, Klaus Unger, Robertus Hendriks, Dieter Lubda
  • Publication number: 20090101580
    Abstract: The present invention relates to a process for the production of monolithic separating columns using monolithic moldings whose diameter is reduced by grinding, and to separating columns having improved separation efficiency produced in this way, and to the use thereof.
    Type: Application
    Filed: April 6, 2007
    Publication date: April 23, 2009
    Inventors: DIETER LUBDA, KARIN CABRERA PEREZ, KLAUS KREHER, CHARLES RODERICK MCLLWRICK
  • Publication number: 20080315083
    Abstract: The present invention relates to capillaries which are at least partially sheathed with metal foil and to the use thereof in the coupling of methods such as HPLC, CE (capillary electrophoresis), CEC (capillary electrochromatography) or pCEC (pressurised CEC) to MS (mass spectrometry). The sheathing according to the invention with metal foil enables direct coupling of the capillaries to a mass spectrometer without using further adapters, such as spray needles or empty capillary parts.
    Type: Application
    Filed: January 25, 2005
    Publication date: December 25, 2008
    Inventors: Dieter Lubda, Ulrich Tallarek, Erdmann Rapp
  • Publication number: 20080193651
    Abstract: The present invention relates to a process for the surface modification of solid support materials, in particular chromatography materials, using silanes, in which the surface modification is carried out in the presence of ionic liquids.
    Type: Application
    Filed: June 12, 2006
    Publication date: August 14, 2008
    Inventors: Dieter Lubda, Urs Welz-Biermann
  • Patent number: 7374724
    Abstract: The invention relates to a device (1) for processing samples (2), comprising a body (3) with a collecting chamber (4), which can be connected with a pump (5) for aspirating, or dispensing fluids and that acts on this collecting chamber, a separating chamber (6) adjoining the collecting chamber (4) for the solid phase extraction and elution of organic, or inorganic particles (7) separated from these samples (2), and an opening (8) for releasing these particles (7). The device in accordance with the invention relates to individual pipette tips, as well as to SPE microplates, and is distinguished in that the device (1) comprises a capillary (9), which is connected with the collecting chamber (4), or with the body (8), and has a packing (10) for the solid phase extraction of organic, or inorganic particles (7) separated from these samples (2) and is used as a separating chamber (6).
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: May 20, 2008
    Assignees: Tecan Trading AG, Merck Patent GmbH
    Inventors: Nikolaus Ingenhoven, Dieter Lubda
  • Publication number: 20070267348
    Abstract: The invention relates to a method for producing open tubular capillaries containing monolithic sorbents and to said capillaries. The inventive capillaries are characterised by a connection layer between the capillary wall and the sorbent, said layer ensuring a particularly good adhesion of the sorbent to the capillary wall.
    Type: Application
    Filed: May 10, 2005
    Publication date: November 22, 2007
    Applicant: MERCK PATENT GmbH
    Inventors: Dieter Lubda, Karin Cabrera
  • Publication number: 20070227957
    Abstract: This invention provides a separating agent for optical isomers, which has high asymmetry recognition ability and can be used particularly at a high flow rate when used for the separation of the optical isomers, and a separation column for optical isomers having the same. This invention provides: a separating agent for optical isomers which is used for separation of optical isomers in a sample comprising the optical isomers, which is comprising a monolithic inorganic type carrier having a meso pore formed on an inner wall surface of a specific macropore, and a polysaccharide or a polysaccharide derivative supported on the monolithic inorganic type carrier, wherein the meso pore has a pore size of 6 to 100 nm; and a separation column for optical isomers in which the separating agent for optical isomers is held in a column tube.
    Type: Application
    Filed: May 29, 2007
    Publication date: October 4, 2007
    Inventors: Tatsushi Murakami, Akihiro Nakanishi, Dieter Lubda, Michael Schulte
  • Patent number: 7238310
    Abstract: The invention relates to the use of gelation moulds made from hydrophobicized glass tubes for the production of monolithic mouldings as sorbents for chromatography.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: July 3, 2007
    Assignee: Merck Patent GmbH
    Inventors: Dieter Lubda, Karin Cabrera
  • Patent number: 7235199
    Abstract: The invention relates to a process for the production of chromatography columns or capillaries containing sorbents of monolithic mouldings which can remain directly in their gelation mould after production. This is achieved by the process according to the invention, in which the gelation mould is repeatedly filled with the monomer sol.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: June 26, 2007
    Assignee: Merck Patent GmbH
    Inventors: Dieter Lubda, Egbert Mueller
  • Publication number: 20060293526
    Abstract: The invention relates to the process for the preparation of N,N-disubstituted imidazolium salts, N-heterocyclic carbene ligands and ruthenium catalysts containing N-heterocyclic carbene ligands, i.e. compounds of the general formulae (I) and, (II), compounds of the general formulae (III) and (IV) and compounds of the general formulae (V) and (VI), immobilised on inorganic oxide supports. The invention furthermore relates to the use of the immobilised compounds of the general formulae (I-IV) in organic, organometallic or transition metal-catalysed synthesis and to the use of the compounds of the general formulae (V) and (VI) as catalysts in organic and organometallic synthesis, in particular for C—C coupling reactions, such as olefin metathesis.
    Type: Application
    Filed: July 16, 2004
    Publication date: December 28, 2006
    Applicant: MERK PATENT GMBH
    Inventors: Katrin Koehler, Dieter Lubda, Kerstin Weigl
  • Publication number: 20060099402
    Abstract: The present invention relates to inorganic monolithic mouldings whose surface is coated with physi- or chemisorbed organic polymers, and to processes for the production of materials of this type. The materials according to the invention are highly suitable as sorbents for chromatography, in particular for high pressure liquid chromatography of biological materials.
    Type: Application
    Filed: October 21, 2003
    Publication date: May 11, 2006
    Inventors: Zofre Bayram-Hahn, Klaus Unger, Robertus Hendriks, Dieter Lubda
  • Publication number: 20050217994
    Abstract: The use of a support material for capillary electrochromatography is disclosed, wherein the support material, which is based on a base material containing hydroxy groups, has reversed phases which are limited to the inner surfaces of porous particles, said reversed phases consisting of fatty acid residues. Further, separating capillaries suitable for such a use are disclosed.
    Type: Application
    Filed: May 23, 2005
    Publication date: October 6, 2005
    Inventors: Klaus Unger, Karl-Siegfried Boos, Angelika Muscate-Magnussen, Dieter Lubda
  • Patent number: 6863820
    Abstract: The invention relates to monolithic sorbents with a casing of fiber-reinforced plastic. Through the use of fiber-reinforced plastic having a viscosity of between 40 and 100 ml/10 min by the MVI method, the casing can be applied to the moulding leaving just a small dead space and has adequate mechanical stability.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: March 8, 2005
    Assignee: Merck Patent GmbH
    Inventors: Karin Cabrera, Alexander Kraus, Willi Neuroth, Dieter Lubda
  • Publication number: 20040191537
    Abstract: This invention relates to a stationary phase for solid phase microextraction (SPME) comprising a surface built up by a RAM (restricted access material) phase, a device for SPME comprising said stationary phase and a method for SPME using said stationary phase. The RAM SPME stationary phases according to the invention are robust, providing many direct extractions and subsequent determinations, while overcoming the present disadvantages of direct sampling of biological matrices by SPME.
    Type: Application
    Filed: December 10, 2003
    Publication date: September 30, 2004
    Inventors: Dieter Lubda, Christian Schafer, Janusz Pawliszyn, Wayne M Mullett
  • Publication number: 20040014917
    Abstract: The present invention relates to a support for catalysts which has a content of physisorbed water of at least 2.5% by weight. Further subject-matters of the application are a process for preparing heterogeneous catalysts containing these supports and the use of these catalysts for olefin polymerization and also a polymerization process using the catalysts.
    Type: Application
    Filed: April 24, 2003
    Publication date: January 22, 2004
    Inventors: Thomas Eberle, Dieter Lubda, Katrin Kohler, Jens Eichhorn