Patents by Inventor Bernd Zierenberg

Bernd Zierenberg 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: 5871771
    Abstract: The invention relates to micronized biodegradable particles, processes for preparing them and use thereof.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 16, 1999
    Assignee: Boehringer Ingelheim KG
    Inventors: Bernd Zierenberg, Gojko Muacevic
  • Patent number: 5645050
    Abstract: In an inhaler for powdered drugs, flat carriers are used which have regular microstructures between which the powder for inhalation is embedded.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: July 8, 1997
    Assignee: Boehringer Ingelheim KG
    Inventors: Bernd Zierenberg, Dieter Hochrainer
  • Patent number: 5633002
    Abstract: The invention relates to an implantable biodegradable system for releasing active substance.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: May 27, 1997
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Herbert Stricker, Gunther Entenmann, Otto Kern, Michel Mikhail, Bernd Zierenberg
  • Patent number: 5575280
    Abstract: The invention relates to a propellant-free inhalation device with a supply of pulverized medical substance in a supply chamber, which has a rotatable dosing means with one or more dosing chambers to receive in one defined position the dose of the medical substance to be inhaled from the supply chamber and to discharge the dose in another position. The inhalation device further is provided with a mouthpiece for active inhalation and an air channel to distribute the dose discharged from the dosing chamber in the flow of breathing air.
    Type: Grant
    Filed: October 25, 1994
    Date of Patent: November 19, 1996
    Assignees: Boehringer Ingelheim KG, Orion Corporation
    Inventors: Arun R. Gupte, Heinrich Kladders, Hans D. Ruthemann, Bernd Zierenberg, Raimo K. A. Auvinen, Pekka J. Karttunen, Mika T. Vidgren
  • Patent number: 5462744
    Abstract: The invention relates to an improved transdermal administration of pharmacologically active compounds.
    Type: Grant
    Filed: November 8, 1993
    Date of Patent: October 31, 1995
    Assignee: Boehringer Ingelheim KG
    Inventors: Arun R. Gupte, Uwe Rohr, Bernd Zierenberg
  • Patent number: 5343653
    Abstract: A device for the transcuticular administration of active substances to plants, and a method of using the same to treat plants with fungicidal, herbicidal, insecticidal and/or acaricidal substances.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: September 6, 1994
    Assignee: Celaflor GmbII
    Inventors: Hanshelmut Itzel, Bernd Zierenberg, Christo Drandarevski, Wilfried Heupt
  • Patent number: 5201925
    Abstract: A device for the transcuticular administration of active substances to plants, and a method of using the same to treat plants with fungicidal, herbicidal, insecticidal and/or acaricidal substances.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: April 13, 1993
    Assignee: Celaflor GmbH
    Inventors: Hanshelmut Itzel, Bernd Zierenberg, Christo Drandarevski, Wilfried Heupt
  • Patent number: 5134993
    Abstract: An inhalator device includes a housing in which an ultrasonic atomizer is disposed. A device delivers a medication to the ultrasonic atomizer. A mouthpiece is disposed downstream of the ultrasonic atomizer in flow direction of the medication defining a space between the ultrasonic atomizer and the mouthpiece. The housing has an air inlet opening formed therein communicating with the space downstream of the ultrasonic atomizer.
    Type: Grant
    Filed: December 11, 1989
    Date of Patent: August 4, 1992
    Assignees: Siemens Aktiengesellschaft, Boehringer Ingelheim KG
    Inventors: Klaus van der Linden, Juergen Friedrich, Bernd Zierenberg
  • Patent number: 5112842
    Abstract: The invention relates to the transdermal administration of 2-amino-6-n-propylamino-4,5,6,7-tetrahydrobenzothiazole or the (-)-enantiomer thereof and transdermal systems containing these active substances.
    Type: Grant
    Filed: November 8, 1990
    Date of Patent: May 12, 1992
    Assignee: Boehringer Ingelheim KG
    Inventors: Bernd Zierenberg, Michael Herschel, Uwe Rohr
  • Patent number: 4826686
    Abstract: This invention relates to the transdermal administration of compounds of general formula I ##STR1## wherein R.sub.1, R.sub.2 and X have the meanings given in the text, and to a therapeutic system for the transdermal administration of this compound.
    Type: Grant
    Filed: December 2, 1986
    Date of Patent: May 2, 1989
    Assignee: Boehringer Ingelheim KG
    Inventors: Victor Brantl, Volkmar Haselbarth, Bernd Zierenberg
  • Patent number: 4683131
    Abstract: A novel divisible delayed release pharmaceutical tablet, wherein the rate of release of active ingredient is independent of the size and nature of the total surface area, and the fragments of which have the same characteristics of release of active ingredient as the undivided tablet.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: July 28, 1987
    Assignee: Boehringer Ingelheim KG
    Inventors: Bernd Zierenberg, Arun R. Gupte
  • Patent number: 4595587
    Abstract: A novel divisible delayed release pharmaceutical tablet, wherein the rate of release of active ingredient is independent of the size and nature of the total surface area, and the fragments of which have the same characteristics of release of active ingredient as the undivided tablet.
    Type: Grant
    Filed: July 3, 1985
    Date of Patent: June 17, 1986
    Assignee: Boehringer Ingelheim KG
    Inventors: Bernd Zierenberg, Arun R. Gupte
  • Patent number: 4547359
    Abstract: A novel divisible delayed release pharmaceutical tablet, wherein the rate of release of active ingredient is independent of the size and nature of the total surface area, and the fragments of which have the same characteristics of release of active ingredient as the undivided tablet.
    Type: Grant
    Filed: March 21, 1984
    Date of Patent: October 15, 1985
    Assignee: Boehringer Ingelheim KG
    Inventors: Bernd Zierenberg, Arun R. Gupte
  • Patent number: 4490322
    Abstract: A novel process for the preparation of a pharmaceutical preparation in the form of an polyacrylate film for long-term transdermal administration of systemic pharmaceuticals comprising forming a homogeneous solution of an effective amount of a systemically acting pharmaceutical and a freeze-dried latex of a polyacrylate copolymer of methyl and/or ethyl esters of acrylic acid and methacrylic acid formed by emulsion polymerization and having an average molecular weight of about 800,000 in at least one organic solvent, forming a thin layer of the said solution and drying the layer to form a polyacrylate film and the film product produced by the said process.
    Type: Grant
    Filed: February 3, 1983
    Date of Patent: December 25, 1984
    Assignee: Boehringer Ingelheim K.G.
    Inventor: Bernd Zierenberg
  • Patent number: 4261512
    Abstract: An improvement in inhalation aerosol spray devices comprising a piezoelectric oscillator connected to an atomizer plate, where the improvement resides in that the working surface of the atomizer plate is coated with a thin elastomer film, whereby the particle spectrum of the aerosol generated by the device is significantly improved.
    Type: Grant
    Filed: February 20, 1980
    Date of Patent: April 14, 1981
    Assignee: Boehringer Ingelheim GmbH
    Inventor: Bernd Zierenberg