Patents by Inventor John A. Dangerfield

John A. Dangerfield 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: 11103585
    Abstract: Disclosed herein is a use of a composition, comprising a non-toxic polyanionic material or a salt thereof to dissociate a polymeric membrane. In addition, a method of dissociating a polymeric membrane is also presented, the method comprising the steps of providing a polymeric membrane; and dissociating the polymeric membrane by adding a composition comprising a non-toxic polyanionic material to the polymeric membrane.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: August 31, 2021
    Assignee: Austrianova Singapore Pte Ltd.
    Inventors: Wee Jin Tan, Walter H. Gunzburg, 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: 20190015514
    Abstract: Disclosed herein is a use of a composition, comprising a non-toxic polyanionic material or a salt thereof to dissociate a polymeric membrane. In addition, a method of dissociating a polymeric membrane is also presented, the method comprising the steps of providing a polymeric membrane; and dissociating the polymeric membrane by adding a composition comprising a non-toxic polyanionic material to the polymeric membrane.
    Type: Application
    Filed: September 14, 2018
    Publication date: January 17, 2019
    Inventors: Wee Jin Tan, Walter H. Gunzburg, John A. Dangerfield
  • Publication number: 20170173158
    Abstract: Disclosed herein is a use of a composition, comprising a non-toxic polyanionic material or a salt thereof to dissociate a polymeric membrane. In addition, a method of dissociating a polymeric membrane is also presented, the method comprising the steps of providing a polymeric membrane; and dissociating the polymeric membrane by adding a composition comprising a non-toxic polyanionic material to the polymeric membrane.
    Type: Application
    Filed: May 8, 2015
    Publication date: June 22, 2017
    Inventors: Wee Jin Tan, Walter H. Gunzburg, John A. Dangerfield
  • 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