Patents by Inventor Stewart Lee

Stewart Lee 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: 11918700
    Abstract: A skin compatible component attachable to mammalian skin. The component is formed as a silicone matrix comprising a polyorganosiloxane derived silicone polymer and a moisture control particulate and permeability modifying polymer distributed within the polymer network. The skin compatible component may be utilised as an ostomy wafer or flange to secure an ostomy appliance to the skin and in particular peri-stomal skin.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: March 5, 2024
    Assignee: TRIO HEALTHCARE LTD
    Inventors: Lloyd Pearce, Stewart Lee
  • Patent number: 11911531
    Abstract: A skin compatible component attachable to mammalian skin. The component is formed as a silicone matrix comprising a polyorganosiloxane derived silicone polymer and moisture control particulate distributed within the polymer network being configured to absorb moisture from the skin. The skin compatible component may be utilised as an ostomy wafer or flange to secure an ostomy appliance to the skin and in particular peri-skin.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: February 27, 2024
    Assignee: TRIO HEALTHCARE LIMITED
    Inventors: Lloyd Pearce, Stewart Lee
  • Patent number: 11827009
    Abstract: Apparatus and method for the screen printing manufacture of a layer of silicone material. The method and apparatus provide for the deposition of a layer of silicone material having a controllable thickness and shape profile as determined by a template forming part of a screen printing assembly. The present apparatus and method provide a fully controlled automated or semi-automated manufacturing process enabling the deposition of a silicone layer onto a substrate layer serving as a conveyor to transport the silicone layer between different units of the process line including a heating/curing unit, a drying unit and a lamination unit.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: November 28, 2023
    Assignee: TRIO HEALTHCARE LTD
    Inventors: Lloyd Pearce, Stewart Lee
  • Publication number: 20230172748
    Abstract: A substrate based skin contact material formed from a hydrocolloid having a silicone based component extending over regions of the substrate surface. The adhesive is formed non-continuously over the substrate to provide areas devoid of adhesive to allow appreciable moisture transfer between the skin and substrate and improve the skin friendliness of the material during use and allow convenient removal with avoidance of skin irritation.
    Type: Application
    Filed: February 2, 2023
    Publication date: June 8, 2023
    Inventor: Stewart Lee
  • Patent number: 11583430
    Abstract: A substrate based skin contact material formed from a hydrocolloid having a silicone based component extending over regions of the substrate surface. The adhesive is formed non-continuously over the substrate to provide areas devoid of adhesive to allow appreciable moisture transfer between the skin and substrate and improve the skin friendliness of the material during use and allow convenient removal with avoidance of skin irritation.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: February 21, 2023
    Assignee: CONVATEC LTD.
    Inventor: Stewart Lee
  • Publication number: 20210346569
    Abstract: A skin compatible component attachable to mammalian skin. The component is formed as a silicone matrix comprising a polyorganosiloxane derived silicone polymer and a moisture control particulate and permeability modifying polymer distributed within the polymer network. The skin compatible component may be utilised as an ostomy wafer or flange to secure an ostomy appliance to the skin and in particular peri-stomal skin.
    Type: Application
    Filed: March 10, 2020
    Publication date: November 11, 2021
    Inventors: Lloyd Pearce, Stewart Lee
  • Publication number: 20210346567
    Abstract: A skin compatible component attachable to mammalian skin. The component is formed as a silicone matrix comprising a polyorganosiloxane derived silicone polymer and moisture control particulate distributed within the polymer network being configured to absorb moisture from the skin. The skin compatible component may be utilised as an ostomy wafer or flange to secure an ostomy appliance to the skin and in particular peri-skin.
    Type: Application
    Filed: July 21, 2021
    Publication date: November 11, 2021
    Inventors: Lloyd PEARCE, Stewart LEE
  • Publication number: 20210338883
    Abstract: A skin compatible component attachable to mammalian skin. The component is formed as a foamed silicone matrix comprising a polyorganosiloxane derived silicone polymer and moisture control particulate distributed within the polymer network being configured to absorb moisture from the skin. The foamed skin compatible component may be utilised as an ostomy wafer or flange to secure an ostomy appliance to the skin and in particular peristomal skin.
    Type: Application
    Filed: March 10, 2020
    Publication date: November 4, 2021
    Inventors: Lloyd Pearce, Stewart Lee
  • Publication number: 20210300015
    Abstract: Apparatus and method for the screen printing manufacture of a layer of silicone material. The method and apparatus provide for the deposition of a layer of silicone material having a controllable thickness and shape profile as determined by a template forming part of a screen printing assembly. The present apparatus and method provide a fully controlled automated or semi-automated manufacturing process enabling the deposition of a silicone layer onto a substrate layer serving as a conveyor to transport the silicone layer between different units of the process line including a heating/curing unit, a drying unit and a lamination unit.
    Type: Application
    Filed: March 10, 2020
    Publication date: September 30, 2021
    Inventors: Lloyd Pearce, Stewart Lee
  • Patent number: 11103614
    Abstract: A skin compatible component attachable to mammalian skin. The component is formed as a silicone matrix comprising a polyorganosiloxane derived silicone polymer and moisture control particulate distributed within the polymer network being configured to absorb moisture from the skin. The skin compatible component may be utilised as an ostomy wafer or flange to secure an ostomy appliance to the skin and in particular peri-skin.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: August 31, 2021
    Assignee: TRIO HEALTHCARE LIMITED
    Inventors: Lloyd Pearce, Stewart Lee
  • Patent number: 11103621
    Abstract: An ostomy bag insert (104) comprising a polyacrylate superabsorbent (300) and a powdered zeolite (301). The ostomy bag insert is configured to absorb fluids excreted by the body and to control odours resultant from the excreted matter within the ostomy bag (100). The present zeolite exhibits enhanced odour control.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: August 31, 2021
    Assignee: CONVATEC LTD
    Inventor: Stewart Lee
  • Publication number: 20210220175
    Abstract: A stent for use in the nasolacrimal duct of a patient's eye. The stent is used to maintain and improve the patency of the nasolacrimal duct The stent uses a hollow shaft to create a fluid pathway from the punctum to the inferior meatus. Either the superior or inferior punctum can be selected for insertion of the stent. An inserter is used to position the flexible stent into position. A guidewire attached to the inserter is removed from the stent and it transforms from its collapsed state to its deployed state. A first anchor stabilizes the proximal end of the stent to the punctum and ampulla. A second anchor stabilizes the proximal end of the stent near the interior meatus. The second anchor can take any of several deployed shapes, such as a pigtail or fins.
    Type: Application
    Filed: January 14, 2021
    Publication date: July 22, 2021
    Inventors: Savan Pravin Patel, Jeffrey John Albertsen, Vasu Nishtala, Stewart Lee Love
  • Patent number: 10750319
    Abstract: The present disclosure provides for dynamically determining locations of an electronic device. For example, the electronic device may determine a location state transition condition using one or both of a location measurement or an activity status of the electronic device. The electronic device may further determine whether the location state transition condition satisfies a location state transition threshold triggering an entry or exit to or from a first location state. The electronic device may further transition from the first location state to a second location state different from the first location state based on a determination that the location state transition condition satisfies the location state transition threshold.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: August 18, 2020
    Inventors: John Stewart Lee, Peter John Cockerell
  • Publication number: 20190313206
    Abstract: The present disclosure provides for dynamically determining locations of an electronic device. For example, the electronic device may determine a location state transition condition using one or both of a location measurement or an activity status of the electronic device. The electronic device may further determine whether the location state transition condition satisfies a location state transition threshold triggering an entry or exit to or from a first location state. The electronic device may further transition from the first location state to a second location state different from the first location state based on a determination that the location state transition condition satisfies the location state transition threshold.
    Type: Application
    Filed: March 11, 2019
    Publication date: October 10, 2019
    Inventors: John Stewart Lee, Peter John Cockerell
  • Publication number: 20190083677
    Abstract: A skin compatible component attachable to mammalian skin. The component is formed as a silicone matrix comprising a polyorganosiloxane derived silicone polymer and moisture control particulate distributed within the polymer network being configured to absorb moisture from the skin. The skin compatible component may be utilised as an ostomy wafer or flange to secure an ostomy appliance to the skin and in particular peri-skin.
    Type: Application
    Filed: March 14, 2017
    Publication date: March 21, 2019
    Inventors: Lloyd PEARCE, Stewart LEE
  • Publication number: 20180369010
    Abstract: A substrate based skin contact material formed from a hydrocolloid having a silicone based component extending over regions of the substrate surface. The adhesive is formed non-continuously over the substrate to provide areas devoid of adhesive to allow appreciable moisture transfer between the skin and substrate and improve the skin friendliness of the material during use and allow convenient removal with avoidance of skin irritation.
    Type: Application
    Filed: September 5, 2018
    Publication date: December 27, 2018
    Inventor: Stewart LEE
  • Patent number: 10092441
    Abstract: A substrate based skin contact material formed from a hydrocolloid having a silicone based component extending over regions of the substrate surface. The adhesive is formed non-continuously over the substrate to provide areas devoid of adhesive to allow appreciable moisture transfer between the skin and substrate and improve the skin friendliness of the material during use and allow convenient removal with avoidance of skin irritation.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: October 9, 2018
    Assignee: CONVATEC LTD
    Inventor: Stewart Lee
  • Publication number: 20180147325
    Abstract: An ostomy bag insert (104) comprising a polyacrylate superabsorbent (300) and a powdered zeolite (301). The ostomy bag insert is configured to absorb fluids excreted by the body and to control odours resultant from the excreted matter within the ostomy bag (100). The present zeolite exhibits enhanced odour control.
    Type: Application
    Filed: January 29, 2018
    Publication date: May 31, 2018
    Inventor: Stewart Lee
  • Publication number: 20140330229
    Abstract: An ostomy bag insert (104) comprising a polyacrylate superabsorbent (300) and a powdered zeolite (301). The ostomy bag insert is configured to absorb fluids excreted by the body and to control odours resultant from the excreted matter within the ostomy bag (100). The present zeolite exhibits enhanced odour control.
    Type: Application
    Filed: August 31, 2012
    Publication date: November 6, 2014
    Applicant: CONVATEC LTD.
    Inventor: Stewart Lee
  • Publication number: 20140323941
    Abstract: A substrate based skin contact material formed from a hydrocolloid having a silicone based component extending over regions of the substrate surface. The adhesive is formed non-continuously over the substrate to provide areas devoid of adhesive to allow appreciable moisture transfer between the skin and substrate and improve the skin friendliness of the material during use and allow convenient removal with avoidance of skin irritation.
    Type: Application
    Filed: August 31, 2012
    Publication date: October 30, 2014
    Applicant: CONVATEC LTD.
    Inventor: Stewart Lee