Patents by Inventor Coenraad Lerk

Coenraad Lerk 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: 6071498
    Abstract: Pharmaceutical powder cartridge for powder inhalers for receiving a medicament depot for a large number of pharmaceutical powder doses, having an integrated metering device which comprises at least one metering cavity for receiving a predetermined quantity of a pharmaceutical powder, the integrated metering device being capable of being moved at least out of a filling position into an emptying position approximately transversely with respect to the flow direction of the pharmaceutical powder, and an inhaler for powdered medicaments, in which inhaler the medicament can be received by a patient by means of an air stream and which has a receptacle for such a pharmaceutical powder cartridge.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: June 6, 2000
    Assignee: ASTA Medica Aktiengesellschaft
    Inventors: Andre Narodylo, Wolfgang Gottenauer, Joachim Goede, Coenraad Lerk, Anne H. De Boer
  • Patent number: 5840279
    Abstract: Pharmaceutical powder cartridge for powder inhalers for receiving a medicament depot for a large number of pharmaceutical powder doses, having an integrated metering device which comprises at least one metering cavity for receiving a predetermined quantity of a pharmaceutical powder, the integrated metering device being capable of being moved at least out of a filling position into an emptying position approximately transversely with respect to the flow direction of the pharmaceutical powder, and an inhaler for powdered medicaments, in which inhaler the medicament can be received by a patient by means of an air stream and which has a receptacle for such a pharmaceutical powder cartridge.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: November 24, 1998
    Assignee: ASTA Medica Aktiengesellschaft
    Inventors: Andre Narodylo, Wolfgang Gottenauer, Joachim Goede, Coenraad Lerk, Anne H. De Boer
  • Patent number: 5301666
    Abstract: A powder inhaler for medication, for example for treatment of asthma. The inhaler has a rotatable and/or displaceable active substance magazine which has several apertures for medication. The magazine is moved with the aid of a control curve mechanism by rotation and/or displacement in such a manner that a chamber prefilled with active substance mixture is always located in front of the air inlet opening. The respiratory air stream of the patient is guided through the apparatus in such a manner that the air stream empties the chamber with the active substance mixture. The active substance mixture is divided up into respirable particles in a cyclone chamber or against an impact plate and then surrounded with a jacket stream of pure air and inhaled.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: April 12, 1994
    Assignee: Asta Medica Aktiengesellschaft
    Inventors: Coenraad Lerk, Anne H. de Boer