Patents by Inventor Walter H. Günzburg

Walter H. Günzburg 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: 11911516
    Abstract: A simple cellulose sulphate based microencapsulation technology has been applied to encapsulate bacterial or other microbial cells, which produce and release digestive enzymes and thereby provides an acid resistant shelter for these microbial cells. Surprisingly, the resulting spheres were found to provide sufficient protection for encapsulated cells from treatment with aqueous acidic solutions. Thereby the cellulose sulphate microencapsulated cells, such as probiotics are now enabled to survive passage, for example, through the stomach after consumption by a human or animal with a higher survival rate than those not within a microcapsule. After passing the stomach these cells are delivering products produced by them, e.g. enzymes or other nutrition factors. This technology therefore proves to be very useful in providing digestive or otherwise beneficial enzymes and/or of living microbial cells, into the lower gastrointestinal tract, where they could confer their health benefit to the host.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: February 27, 2024
    Assignee: AUSTRIANOVA SINGAPORE PTE LTD.
    Inventors: Walter H. Guenzburg, Eva Maria Brandtner, Brian Salmons, John A. Dangerfield
  • Publication number: 20220062187
    Abstract: A simple cellulose sulphate based microencapsulation technology has been applied to encapsulate bacterial or other microbial cells, which produce and release digestive enzymes and thereby provides an acid resistant shelter for these microbial cells. Surprisingly, the resulting spheres were found to provide sufficient protection for encapsulated cells from treatment with aqueous acidic solutions. Thereby the cellulose sulphate microencapsulated cells, such as probiotics are now enabled to survive passage, for example, through the stomach after consumption by a human or animal with a higher survival rate than those not within a microcapsule. After passing the stomach these cells are delivering products produced by them, e.g. enzymes or other nutrition factors. This technology therefore proves to be very useful in providing digestive or otherwise beneficial enzymes and/or of living microbial cells, into the lower gastrointestinal tract, where they could confer their health benefit to the host.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 3, 2022
    Inventors: Walter H. GUENZBURG, Eva Maria BRANDTNER, Brian SALMONS, John A. DANGERFIELD
  • Patent number: 10329526
    Abstract: The disclosure provides a method of freeze-drying encapsulated cells, the method comprising at least two consecutive incubation steps, wherein the encapsulated cells are incubated in each incubation step in an incubation solution containing cryoprotectant over a suitable period of time, wherein the concentration of cryoprotectant in the incubation solution is increased with each subsequent incubation step. The disclosure also provides freeze dried cells that are obtained by this method as well as various uses of these cells as pharmaceutical, food additive or additive in cosmetics. The disclosure also provides a composition that contains skim milk, glycerol and a carbohydrate.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: June 25, 2019
    Assignee: Austrianova Singapore Pte Ltd.
    Inventors: Brian Salmons, John A. Dangerfield, Walter H. Guenzburg
  • Publication number: 20160298077
    Abstract: The disclosure provides a method of freeze-drying encapsulated cells, the method comprising at least two consecutive incubation steps, wherein the encapsulated cells are incubated in each incubation step in an incubation solution containing cryoprotectant over a suitable period of time, wherein the concentration of cryoprotectant in the incubation solution is increased with each subsequent incubation step. The disclosure also provides freeze dried cells that are obtained by this method as well as various uses of these cells as pharmaceutical, food additive or additive in cosmetics. The disclosure also provides a composition that contains skim milk, glycerol and a carbohydrate.
    Type: Application
    Filed: July 2, 2014
    Publication date: October 13, 2016
    Applicant: Austrianova Singapore Pte Ltd.
    Inventors: Brian SALMONS, John A. DANGERFIELD, Walter H. GUENZBURG
  • Publication number: 20140023693
    Abstract: A simple cellulose sulphate based microencapsulation technology has been applied to encapsulate bacterial or other microbial cells, which produce and release digestive enzymes and thereby provides an acid resistant shelter for these microbial cells. Surprisingly, the resulting spheres were found to provide sufficient protection for encapsulated cells from treatment with aqueous acidic solutions. Thereby the cellulose sulphate microencapsulated cells, such as probiotics are now enabled to survive passage, for example, through the stomach after consumption by a human or animal with a higher survival rate than those not within a microcapsule. After passing the stomach these cells are delivering products produced by them, e.g. enzymes or other nutrition factors. This technology therefore proves to be very useful in providing digestive or otherwise beneficial enzymes and/or of living microbial cells, into the lower gastrointestinal tract, where they could confer their health benefit to the host.
    Type: Application
    Filed: January 25, 2012
    Publication date: January 23, 2014
    Applicant: Austrianova Singapore Pte Ltd.
    Inventors: Walter H. Guenzburg, Eva Maria Brandtner, Brian Salmons Salmons, John A. Dangerfield
  • Patent number: 7022319
    Abstract: The present invention relates to recombinant vectors carrying sequences encoding naturally occurring antimicrobial peptides or derivatives thereof for the treatment of mammalian tumours and viral infections such as HIV infections and bacterial and fungal infections. In particular the present invention relates to retroviral vectors. Furthermore, the present invention relates to retroviral vectors which undergo promoter conversion (Procon vectors) carrying such sequences. Since these vectors also carry tumour or virus specific regulatory elements, the therapeutic antimicrobial peptide will be delivered and expressed only in relevant, affected cells and not in innocent bystander cells.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: April 4, 2006
    Assignee: GSF - Forschungszentrum fuer Umwelt und Gesundheit GmbH
    Inventors: Walter H. Günzburg, David Winder, Robert M. Saller
  • Patent number: 6893634
    Abstract: The present invention relates to capsules encapsulating cytochrome P450 producing cells and cytochrome P450 producing retroviral packaging cells. Furthermore, the present invention relates to the treatment of cancer or any other relevant disease with said capsules and to the use of said capsules for the preparation of a pharmaceutical composition for said treatment.
    Type: Grant
    Filed: September 24, 1998
    Date of Patent: May 17, 2005
    Assignees: GSF-Forschungszentrum fur Umwelt und Gesundheit GmbH, Bavarian Nordic A/S
    Inventors: Walter H. Günzburg, Peter Karle, Robert Saller, Brian Salmons, Matthias Löhr, Peter Müller
  • Patent number: 6776985
    Abstract: The present invention relates to encapsulated cells producing viral particles, especially retroviral particles containing the genome of a retroviral vector carrying therapeutic genes, to methods for the preparation of such encapsulated cells, as well as to the use of such encapsulated cells for the delivery of genes, especially therapeutic genes, to target organs/cells.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: August 17, 2004
    Assignees: Bavarian Nordic A/S, GSF-Gesellschaft fur Umwelt und Gesundheit GmbH
    Inventors: Robert Michael Saller, Walter H. Günzburg, Brian Salmons
  • Patent number: 6730511
    Abstract: The invention refers to a novel recombinant vectors useful for gene therapy of viral infections and of diseases associated with B and T cells. The present invention relates, furthermore, to novel usages of the two products of the open reading frame of mouse mammary tumour virus.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: May 4, 2004
    Assignee: GSF-Forschungszentrum Fuer Umwelt und Gesendheit GmbH
    Inventors: Walter H. Günzburg, Brian Salmons
  • Patent number: 6656727
    Abstract: The present invention relates to a retroviral vector encoding heterologous genes particularly for gene therapy of genetic defects or viral infections.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: December 2, 2003
    Assignee: Institut Fur Virologie
    Inventors: Walter H. Günzburg, Brian Salmons, Sabine Goller, Dieter Klein
  • Patent number: 6540995
    Abstract: The present invention relates to capsules encapsulating cytochrome P450 producing cells and cytochrome P450 producing retroviral packaging cells. Furthermore, the present invention relates to the treatment of cancer or any other relevant disease with said capsules and to the use of said capsules for the preparation of a pharmaceutical composition for said treatment.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: April 1, 2003
    Assignee: Bavarian Nordic Research Institute GmbH
    Inventors: Walter H. Günzburg, Peter Karle, Robert Saller, Brian Salmons, Matthias Löhr, Peter Müller