Patents by Inventor Urs Lendenmann

Urs Lendenmann 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: 10632460
    Abstract: A pipetting device has a pipetting channel extending along a channel path, in which a piston is accommodated to be movable along the channel path to change the pressure of a working gas that wets the piston on a dosing side facing the dosing liquid. The pipetting device includes a movement drive for driving the piston along the channel path and a control unit configured to operate the movement drive for pipetting a predetermined single dosing volume of less than 5 ?l with the piston moving in the pipetting direction and its dosing side end face sweeping over a pipetting volume which is not less than 1.4 times greater than the single dosing volume, and subsequently moving in a counter pipetting direction and its dosing side end face sweeping over a counter pipetting volume, wherein not more than 50 ms elapse between beginning control signals.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: April 28, 2020
    Assignee: Hamilton Bonaduz AG
    Inventors: Hanspeter Romer, Fridolin Gysel, Urs Lendenmann
  • Publication number: 20190358517
    Abstract: A capsule for containing wax to be applied to a surface of a runner that is adapted to glide over snow, and to a waxing device including the capsule. The capsule includes a compartment for containing wax and heat conduction device for heating the wax to a melting temperature. The compartment includes an application surface that is permeable or perforated or adapted to be perforated, to allow molten wax to exit the compartment via one or more perforations or pores, to apply the molten wax to the surface of the runner.
    Type: Application
    Filed: May 21, 2019
    Publication date: November 28, 2019
    Inventor: Urs LENDENMANN
  • Publication number: 20190224082
    Abstract: Composition for use in the remineralization of teeth, which comprises a fluoride-containing component and a calcium-containing component, wherein the calcium-containing component contains a nanoparticulate calcium salt and the composition is designed for the successive application of the fluoride-containing component and the calcium-containing component to the tooth surface, wherein the fluoride-containing component is applied to the tooth before the calcium-containing component.
    Type: Application
    Filed: January 16, 2019
    Publication date: July 25, 2019
    Inventors: Urs Lendenmann, Carlo Bolis
  • Patent number: 9260739
    Abstract: The present invention relates to a method for the semi-quantitative determination of cariogenic bacteria in a sample of saliva and/or plaque, in which the microorganisms contained in a sample of plaque or saliva are brought into contact with a carbon source that is fermented to acid by the cariogenic bacteria. The microorganisms are then incubated under conditions which make possible selective acid formation by the cariogenic bacteria. The acid formation is then detected by determining the pH at least once within a period of 12 hours after adding the carbon source, wherein the cariogenic bacteria are determined semi-quantitatively in the sample by comparison of the pH with at least one reference value. In addition, the invention provides kits for carrying out such methods.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: February 16, 2016
    Assignee: Ivoclar Vivadent AG
    Inventors: Manuela Bischof, Carlo Bolis, Urs Lendenmann, Volker Rheinberger
  • Publication number: 20150257983
    Abstract: Fluoride-containing varnish for application to the tooth surface, which contains 25-87.5 wt. % organic solvent, 2-50 wt. % water, 5-50 wt. % water-insoluble film-forming agent, optionally 5-25 wt. % plasticizer, 0.5-10 wt. % inorganic fluoride source in dissolved form, in each case relative to the total weight of the varnish. The varnish is suitable in particular for use in the treatment of hypersensitive teeth and/or tooth necks, in the prophylaxis of caries, in the treatment of incipient caries lesions, the inhibition of demineralization and/or tooth erosion.
    Type: Application
    Filed: September 3, 2013
    Publication date: September 17, 2015
    Inventors: Urs Lendenmann, Carlo Bolis
  • Publication number: 20140335559
    Abstract: The present invention relates to a method for the semi-quantitative determination of cariogenic bacteria in a sample of saliva and/or plaque, in which the microorganisms contained in a sample of plaque or saliva are brought into contact with a carbon source that is fermented to acid by the cariogenic bacteria. The microorganisms are then incubated under conditions which make possible selective acid formation by the cariogenic bacteria. The acid formation is then detected by determining the pH at least once within a period of 12 hours after adding the carbon source, wherein the cariogenic bacteria are determined semi-quantitatively in the sample by comparison of the pH with at least one reference value. In addition, the invention provides kits for carrying out such methods.
    Type: Application
    Filed: May 15, 2014
    Publication date: November 13, 2014
    Applicant: Ivoclar Vivadent AG
    Inventors: Manuela Bischof, Carlo Bolis, Urs Lendenmann, Volker Rheinberger
  • Patent number: 8765400
    Abstract: The present invention relates to a method for the semi-quantitative determination of cariogenic bacteria in a sample of saliva and/or plaque, in which the microorganisms contained in a sample of plaque or saliva are brought into contact with a carbon source that is fermented to acid by the cariogenic bacteria. The microorganisms are then incubated under conditions which make possible selective acid formation by the cariogenic bacteria. The acid formation is then detected by determining the pH at least once within a period of 12 hours after adding the carbon source, wherein the cariogenic bacteria are determined semi-quantitatively in the sample by comparison of the pH with at least one reference value. In addition, the invention provides kits for carrying out such methods.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: July 1, 2014
    Assignee: Ivoclar Vivadent AG
    Inventors: Manuela Bischof, Carlo Bolis, Urs Lendenmann, Volker Rheinberger
  • Patent number: 8656792
    Abstract: A pipette device including a metering liquid receptacle designed to be filled, at least in part, with working fluid and which has a pipette opening as a first tapering of cross-section of flow, a pressure change device which is designed to change the pressure of the working fluid in the metering liquid receptacle, and a throttle point in a pipette duct designed to be filled with working fluid as a further tapering of cross-section of flow. The throttle point is arranged fluid-mechanically between the metering liquid receptacle and the pressure change device and is dimensioned in such a way that a ratio of a flow resistance of the pipette opening for dispensed metering liquid to a flow resistance of the throttle point for working fluid, which flows through the throttle point when the metering fluid is dispensed, is less than 0.5.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: February 25, 2014
    Assignee: Hamilton Bonaduz AG
    Inventors: Vinzenz Kirste, Helmut Knapp, Urs Lendenmann, Noa Schmid, Tobias Seiler, Fabian Winter
  • Publication number: 20120017704
    Abstract: Pipette device (10), at least for dispensing metering liquid by increasing the pressure of a working fluid, comprising a metering liquid receptacle (38) which is filled, at least in part, with working fluid and has a pipette opening (36) as a first tapering of cross-section of flow, through which metering liquid can be dispensed from the metering liquid receptacle (38) as a function of the pressure of the working fluid, and comprising a pressure change device (40) which is designed to change the pressure of the working fluid in the metering liquid receptacle (38), wherein the pipette device (10) comprises a throttle point (42) in a pipette duct (12) filled with working fluid during normal operation as a further tapering of cross-section of flow, said throttle point being arranged fluid-mechanically between the metering liquid receptacle (38) and the pressure change device (40) and being dimensioned in such a way that a ratio of a flow resistance (R1) of the pipette opening (36) for dispensed metering liquid t
    Type: Application
    Filed: July 26, 2011
    Publication date: January 26, 2012
    Applicant: Hamilton Bonaduz AG
    Inventors: Vinzenz KIRSTE, Helmut Knapp, Urs Lendenmann, Noa Schmid, Tobias Seiler, Fabian Winter
  • Publication number: 20120015398
    Abstract: The present invention relates to a method for the semi-quantitative determination of cariogenic bacteria in a sample of saliva and/or plaque, in which the microorganisms contained in a sample of plaque or saliva are brought into contact with a carbon source that is fermented to acid by the cariogenic bacteria. The microorganisms are then incubated under conditions which make possible selective acid formation by the cariogenic bacteria. The acid formation is then detected by determining the pH at least once within a period of 12 hours after adding the carbon source, wherein the cariogenic bacteria are determined semi-quantitatively in the sample by comparison of the pH with at least one reference value. In addition, the invention provides kits for carrying out such methods.
    Type: Application
    Filed: July 12, 2011
    Publication date: January 19, 2012
    Applicant: IVOCLAR VIVADENT AG
    Inventors: Manuela Bischof, Carlo Bolis, Urs Lendenmann, Volker Rheinberger
  • Patent number: 6248580
    Abstract: Dinitrotoluene present as a contaminant in a sample, is degraded by the steps of (a) providing a sample comprising dinitrotoluene; (b) adding to the sample at least one bacterial strain capable of degrading at least one dinitrotoluene isomer under aerobic conditions; (c) producing aerobic conditions in the sample; and (d) maintaining the aerobic conditions in the sample for a time that is sufficient for the bacteria to degrade said dinitrotoluene. In one embodiment, at least one bacterial strain capable of degrading the 2,4-dinitrotoluene isomer under aerobic conditions is added to the sample. In another embodiment, at least one bacterial strain capable of degrading the 2,6-dinitrotoluene isomer under aerobic conditions is added to the sample. In yet another embodiment, at least one bacterial strain capable of degrading both the 2,4-dinitrotoluene isomer and the 2,6-dinitrotoluene isomer under aerobic conditions is added to the sample.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: June 19, 2001
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Jim C. Spain, Shirley F. Nishino, Urs Lendenmann