Patents by Inventor Hans-Georg Neumann

Hans-Georg Neumann 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).

  • Publication number: 20170354764
    Abstract: The invention relates to a coated balloon catheter with a catheter substrate and a coating on the catheter substrate. The coating comprises a pharmaceutically active ingredient embedded in a binder matrix. The binder matrix consists of a polyethylene glycol-polyvinyl alcohol copolymer (PEG-PVA copolymer) and optionally shellac or a shellac derivative and additional pharmaceutically acceptable additives. A composition for coating the balloon catheter comprises the pharmaceutically active ingredient and a binder consisting of a PEG-PVA copolymer and optionally shellac or a shellac derivative. The active ingredient and the binder are dissolved in a solvent consisting of water, DMSO and at least one additional organic solvent indefinitely miscible with water.
    Type: Application
    Filed: May 16, 2017
    Publication date: December 14, 2017
    Inventors: Hans-Georg NEUMANN, Mischa BUHRMEISTER
  • Patent number: 9492588
    Abstract: A calcium phosphate/copper coating for an implant is provided which includes highly porous calcium phosphate and predominantly discontinuously distributed copper. The highly porous calcium phosphate first forms a highly porous calcium phosphate layer in which the copper has been incorporated so as to be discontinuously distributed, to form the calcium phosphate/copper coating. Further provided are a method of producing such a calcium phosphate/copper coating and an implant coated therewith.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: November 15, 2016
    Assignee: DOT GMBH
    Inventors: Hans-Georg Neumann, Cornelia Prinz
  • Patent number: 9119687
    Abstract: A method of manufacturing a functionalized implant, in particular a dental implant, is provided, including first providing a substrate for the implant and applying a highly porous, hydrophilic coating which contains at least one of the following materials for functionalization: zirconium or titanium or zirconium alloy or titanium alloy, zirconium oxide or titanium oxide, calcium phosphate, calcium titanate or calcium zirconate. Further provision is made for a functionalized implant, in particular a dental implant.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: September 1, 2015
    Assignee: DOT GmbH
    Inventors: Hans-Georg Neumann, Ulrich Lembke
  • Patent number: 9107981
    Abstract: An antibacterial coating for an implant is provided that contains copper. A method of producing an antibacterial coating for an implant is also provided that includes the coating being applied by a PVD process and the layer generated by the PVD process includes a copper content.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: August 18, 2015
    Assignee: DOT GMBH
    Inventors: Hans-Georg Neumann, Cornelia Prinz, Ulrich Lembke
  • Patent number: 8911817
    Abstract: A method and apparatus for coating catheters or balloon catheters is disclosed in which the catheter or balloon catheter is radially surrounded completely or almost completely at a constant distance by a device that applies a coating solution so that the coating solution completely fills the space between the catheter or balloon catheter and the device and thus completely surrounds the catheter or balloon catheter, relative motion is effected between the device and the catheter or balloon catheter in the axial direction across the surface of the catheter or balloon catheter multiple times, and partial drying of the applied coating solution occurs between the individual coating stages.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: December 16, 2014
    Assignee: DOT GmbH
    Inventors: Hans-Georg Neumann, Mischa Buhrmeister
  • Publication number: 20140255874
    Abstract: A method of manufacturing a functionalized implant, in particular a dental implant, is provided, including first providing a substrate for the implant and applying a highly porous, hydrophilic coating which contains at least one of the following materials for functionalization: zirconium or titanium or zirconium alloy or titanium alloy, zirconium oxide or titanium oxide, calcium phosphate, calcium titanate or calcium zirconate. Further provision is made for a functionalized implant, in particular a dental implant.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Applicant: DOT GMBH
    Inventors: Hans-Georg Neumann, Ulrich Lembke
  • Patent number: 8828552
    Abstract: The invention relates to a method for producing an anti-infective coating on implants that contain titanium or are composed of titanium. The aim of the invention is to provide a coating method with which it is possible, for implants made of titanium or that contain titanium, to combine the optimization of the mechanical properties achieved with the anodic oxidation type II with the optimization of the anti-infective properties. According to the invention, the implants are anodically oxidized in an alkaline solution, then metal having anti-infective properties is electrodeposited on said surface, and afterwards the oxide layer containing metal is solidified.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: September 9, 2014
    Assignee: Dot GmbH
    Inventors: Hans-Georg Neumann, Cornelia Prinz
  • Publication number: 20130302640
    Abstract: A fitting (10) with a substrate (12) and an antibacterial coating (14) is characterized in that the coating (14) is a PVD coating which contains copper. A method for manufacturing such fitting (10) is characterized in that the coating (14) is applied by a PVD method.
    Type: Application
    Filed: December 23, 2010
    Publication date: November 14, 2013
    Inventors: Hans-Georg Neumann, Cornelia Prinz, Ulrich Lembke
  • Publication number: 20130252021
    Abstract: The invention relates to the antibacterial coating for an implant, which is characterized in that the coating contains copper. The invention also relates to a method of producing an antibacterial coating for an implant, the coating being applied by means of a PVD process, and the method being characterized in that the layer generated contains a copper content.
    Type: Application
    Filed: November 28, 2011
    Publication date: September 26, 2013
    Applicant: DOT GMBH
    Inventors: Hans-Georg Neumann, Cornelia Prinz, Ulrich Lembke
  • Publication number: 20120100279
    Abstract: In a method and apparatus for coating catheters or balloon catheters the catheter or balloon catheter is radially surrounded completely or almost completely at a constant distance by a device that applies a coating solution so that the coating solution completely fills the space between the catheter or balloon catheter and the device and thus completely surrounds the catheter or balloon catheter, relative motion is effected between the device and the catheter or balloon catheter in the axial direction across the surface of the catheter or balloon catheter multiple times, and partial drying of the applied coating solution occurs between the individual coating stages.
    Type: Application
    Filed: June 16, 2010
    Publication date: April 26, 2012
    Applicant: DOT GmbH
    Inventors: Hans-Georg Neumann, Mischa Buhrmeister
  • Publication number: 20120024712
    Abstract: The invention relates to a method for producing an anti-infective coating on implants that contain titanium or are composed of titanium. The aim of the invention is to provide a coating method with which it is possible, for implants made of titanium or that contain titanium, to combine the optimization of the mechanical properties achieved with the anodic oxidation type II with the optimization of the anti-infective properties. According to the invention, the implants are anodically oxidized in an alkaline solution, then metal having anti-infective properties is electrodeposited on said surface, and afterwards the oxide layer containing metal is solidified.
    Type: Application
    Filed: January 4, 2010
    Publication date: February 2, 2012
    Inventors: Hans-Georg Neumann, Cornelia Prinz
  • Publication number: 20090280179
    Abstract: A resorbable bone replacement material made of calcium phosphate particles of different phases which are embedded in an inventive-specific cross-linked collagen matrix. The goal is to form a non-brittle, bone replacement moulded body having a positive fit, i.e. having a shape which is anatomic and/or corresponds to the defect, which perfectly fills the bone defect and can be resorbed thereby. Said goal is achieved by producing the bone replacement material made of a mixture of calcium phosphate particles which is embedded in an inventive cross-linked collagen matrix. In particular, the collagen cross-linking is achieved by a Laccase-induced peptide cross-linking and suitable bridge molecules. Essentially substituted dihydroxyarmotes and/or substrates of the lignolytic polyphenoloxidases, such as Laccases, are suitable as bridge molecules.
    Type: Application
    Filed: February 9, 2007
    Publication date: November 12, 2009
    Inventors: Hans-Georg Neumann, Ernst-Dieter Klinkenberg, Frieder Schauer, Ulrike Lindequist, Wolf-Dieter Juelich, Annett Mikolasch, Katrin Manda
  • Patent number: 7344749
    Abstract: A method for coating substrates with calcium phosphate. The aim of the method is to be able to carry out a simple coating for all materials as well as for particles. To this end, the substrate to be coated is placed in a calcium phosphate gel, whereupon this substrate that is coated with the gel is dried. Afterwards, the calcium phosphate particles not adhering to the substrate are removed. The substrate can also be placed inside a colloidal solution of SiO2 containing a calcium phosphate, whereupon the mixture is constantly set in motion, the solvent is removed, and the substrate is provided with a calcium phosphate layer by condensing the colloidal SiO2 on the surface of the substrate. The coated substrates can, particularly when it concerns coated particles, be used as a bone substitute material.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: March 18, 2008
    Assignee: DOT GmbH
    Inventors: Petra Becker, Mischa Buhrmeister, Hans-Georg Neumann, Marianne Teller
  • Publication number: 20070196419
    Abstract: The invention relates to composite materials based on polysilicic acid, said materials containing novel compositions which have improved material properties and can be in the form of dispersions, pastes, powders, granulated materials, layers or compact moulded bodies. The aim of the invention is to produce composite materials based on polysilicic acid with improved mechanical properties. To this end, the composite materials contain polysilicic acid, between 0.01 and 20 mass % of an organic polymer, more than 15 mass % of at least one calcium phosphate phase, and optionally a use-specific additive. The material produced according to the invention can be implanted or injected. The composition of the composite material with the resulting properties enables the composite material to be used for bone substitution and/or bone regeneration in both human medicine and animal medicine. The inventive material can also be used to heal wounds.
    Type: Application
    Filed: March 7, 2005
    Publication date: August 23, 2007
    Inventors: Marianne Teller, Hans-Georg Neumann
  • Publication number: 20050119760
    Abstract: The invention relates to a body joint replacement titanium implant comprising one or several base bodies. In known titanium implants, there is a risk of loosening due to the anchoring of the implants in the bone at points where an optimum bone regeneration is undesirable. The functioning of the joints of the implants can be impaired by coalescing with connective tissue. The novel titanium plants avoid said problems by virtue of the fact that parts (3, 4, 8, 9) of the implant are provided with an anodically (type II) oxidised layer containing oxygen and silicon.
    Type: Application
    Filed: February 10, 2003
    Publication date: June 2, 2005
    Inventors: Hans-Georg Neumann, Peter Zeggel, Giles Melsom, Egidius Hermsen
  • Publication number: 20050069629
    Abstract: The invention relates to a novel method for coating substrates with calcium phosphate. Prior art methods do not permit temperature-sensitive substrates or particles to be coated with calcium phosphates or it requires several method steps for carrying out this coating. The aim of the novel method is to be able to carry out a simple coating for all materials as well as for particles. To this end, the invention provides that the substrate to be coated is placed in a calcium phosphate gel, whereupon this substrate that is coated with the gel is dried. Afterwards, the calcium phosphate particles not adhering to the substrate are removed. According to the invention, the substrate can also be placed inside a colloidal solution of SiO2 containing a calcium phosphate, whereupon the mixture is constantly set in motion, the solvent is removed, and the substrate is provided with a calcium phosphate layer by condensing the colloidal SiO2 on the surface of the substrate.
    Type: Application
    Filed: December 6, 2002
    Publication date: March 31, 2005
    Inventors: Petra Becker, Mischia Buhrmeister, Hans-Georg Neumann, Marianne Teller
  • Patent number: 6866846
    Abstract: A process for preparing a patient-specific immunoadsorber, which comprises (i) extracting a body fluid from a patient having an immunopathological condition, the fluid containing immune complexes that are relevant to that immunopathological condition, (ii) contacting the extracted fluid with an adsorbent for the immune complexes to form adsorbed immune complexes, (iii) eluting the adsorbed complexes to form an eluate, (iv) fractionating the eluate into a plurality of immune complex component fractions, and (v) immobilizing the immune complex components on one or more biologically compatible carriers activated to bond to its surface one or more desired immune complex components.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: March 15, 2005
    Assignee: Privates Institut Bioserv GmbH
    Inventors: Hans-Werner Heinrich, Wolfgang Ramlow, Hans-Friedrich Boeden, Hans-Georg Neumann, Udo Meyer, Joachim Teller
  • Publication number: 20040037952
    Abstract: Protecting surfaces from biological fouling when the surfaces are in contact with a liquid medium such as salt water or fresh water. The surfaces are protected by a coating comprises several layers. The layers include: a layer of electrically conductive carbon foil; and a top coating with special properties. The carbon foil is provided with an electrical contact. There is a counter electrode in the liquid medium by which a direct current can be generated to cause a shift in the pH value of the liquid layer adjacent to the surface.
    Type: Application
    Filed: December 18, 2002
    Publication date: February 26, 2004
    Inventors: Stefan Sandrock, Eva-Maria Scharf, Hans-Georg Neumann, Konrad Reiter, Axel Franz, Eggert Gunther
  • Patent number: 6626103
    Abstract: An inverter (1) for thin, flat products (2), especially printing substrates in a printing machine, with belts (7, 8) positioned over two deflection pulleys (3, 4, 5, 6) that are set together at 180° between the deflection pulleys (3, 4, 5, 6). Such inverter is configured so that the product (2) and the belts (7, 8) move precisely in their reference positions. This is achieved by the fact that, in the transport direction (9), after a setting region (10) at least three guide rolls (11, 12, 13) are mounted on the supporting strand sides (7′, 8′) of belts (7, 8) in alternating arrangement and at least one of the guide rolls (11, 12 13) has a retaining collar (14) on at least one side and at least one guide roll (18) is arranged before the setting region (10). Further, at least one guide device (19, 20, 21) is arranged to guide product (2) to facilitate inversion.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: September 30, 2003
    Assignee: NexPress Solutions LLC
    Inventor: Norbert Hans-Georg Neumann
  • Publication number: 20030066445
    Abstract: Device for inversion of sheets in a printing machine. The inversion device includes two belts positioned over deflection pulleys which are crossed and rotated by 180° so that they can convey at least one sheet along an inversion path lying next to each other, and having support rolls which lie against them on both sides in the region of belts lying against each other and cause deflection of belts from the linear direction.
    Type: Application
    Filed: August 14, 2001
    Publication date: April 10, 2003
    Inventor: Norbert Hans-Georg Neumann