Patents by Inventor Stephen Law

Stephen Law 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).

  • Publication number: 20250281663
    Abstract: The present invention relates to a wound contact layer which is suitable for wound care. The wound contact layer comprises a mesh-like substrate which is partially or completely coated with an emulsion, wherein the emulsion comprises an antimicrobial composition containing a) ionic silver and/or silver nitrate, b) ionic zinc and/or zinc nitrate, and c) EDTA. The wound contact layer has an antimicrobial effect and is effective against biofilms. The wound contact layer enables wound care and promotes wound healing.
    Type: Application
    Filed: March 6, 2025
    Publication date: September 11, 2025
    Inventors: Markus Kettel, Jonathan Nosworthy, Stephen Law, Steven Percival, Rui Chen
  • Publication number: 20240215905
    Abstract: The present invention relates to a wound dressing comprising an electrochemical sensor configured to detect the level of an electroactive species within a wound environment during use. The present invention also relates to a method of detecting the level of an electroactive species within a wound environment by applying a wound dressing according to the present invention onto a wound and operating an electrochemical sensor to detect an electroactive species within the wound environment.
    Type: Application
    Filed: June 30, 2022
    Publication date: July 4, 2024
    Inventors: Neville J. Freeman, Stephen Law, Steven L. Percival, Marcus J. Swann
  • Publication number: 20160114074
    Abstract: This invention relates to absorbent materials useful in the manufacture of absorbent articles, in particular dressings for the advanced wound care market. The absorbent materials of the present invention are sulfonated polysaccharides, particularly water-insoluble cellulose alkyl sulfonates in which the cellulose is substituted by one type of alkyl sulfonate group. The invention also provides a process for the manufacture of such materials. The preferred cellulose alkyl sulfonate described herein is cellulose ethyl sulfonate. Reinforcing fibers and/or antimicrobial agents are optionally applied to the cellulose alkyl sulfonate.
    Type: Application
    Filed: November 16, 2015
    Publication date: April 28, 2016
    Applicant: SPECIALITY FIBRES AND MATERIALS LTD.
    Inventor: STEPHEN LAW
  • Patent number: 9221963
    Abstract: This invention relates to absorbent materials useful in the manufacture of absorbent articles, in particular dressings for the advanced wound care market. The absorbent materials of the present invention are sulfonated polysaccharides, particularly water-insoluble cellulose alkyl sulfonates in which the cellulose is substituted by one type of alkyl sulfonate group. The invention also provides a process for the manufacture of such materials. The preferred cellulose alkyl sulfonate described herein is cellulose ethyl sulfonate. Reinforcing fibers and/or antimicrobial agents are optionally applied to the cellulose alkyl sulfonate.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: December 29, 2015
    Assignee: SPECIALITY FIBRES AND MATERIALS LTD.
    Inventor: Stephen Law
  • Patent number: 9144625
    Abstract: This invention relates to absorbent materials useful in the manufacture of absorbent articles, in particular dressings for the advanced wound care market. The absorbent materials of the present invention are sulfonated polysaccharides, particularly water-insoluble cellulose alkyl sulfonates in which the cellulose is substituted by one type of alkyl sulfonate group. The invention also provides a process for the manufacture of such materials. The preferred cellulose alkyl sulfonate described herein is cellulose ethyl sulfonate. Reinforcing fibers and/or antimicrobial agents are optionally applied to the cellulose alkyl sulfonate.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: September 29, 2015
    Assignee: SPECIALITY FIBRES AND MATERIALS LTD.
    Inventor: Stephen Law
  • Publication number: 20140219063
    Abstract: Embodiments reduce capacitive cross-talk between micromachined ultrasonic transducer (MUT) arrays through grounding of the substrate over which the arrays are fabricated. In embodiments, a metal-semiconductor contact is formed to a semiconductor device layer of a substrate and coupled to a ground plane common to a first electrode of the transducer elements to suppress capacitive coupling of signal lines connected to a second electrode of the transducer elements.
    Type: Application
    Filed: February 7, 2013
    Publication date: August 7, 2014
    Inventors: Arman Hajati, Dimitre Latev, Deane Gardner, Stephen Law
  • Publication number: 20110238025
    Abstract: This invention relates to absorbent materials useful in the manufacture of absorbent articles, in particular dressings for the advanced wound care market. The absorbent materials of the present invention are sulfonated polysaccharides, particularly water-insoluble cellulose alkyl sulfonates in which the cellulose is substituted by one type of alkyl sulfonate group. The invention also provides a process for the manufacture of such materials. The preferred cellulose alkyl sulfonate described herein is cellulose ethyl sulfonate. Reinforcing fibers and/or antimicrobial agents are optionally applied to the cellulose alkyl sulfonate.
    Type: Application
    Filed: November 27, 2009
    Publication date: September 29, 2011
    Inventor: Stephen Law
  • Publication number: 20100129633
    Abstract: This invention relates to absorbent materials useful in the manufacture of absorbent articles, in particular dressings for the advanced wound care market. The absorbent materials of the present invention are sulfonated polysaccharides, particularly water-insoluble cellulose alkyl sulfonates in which the cellulose is substituted by one type of alkyl sulfonate group. The invention also provides a process for the manufacture of such materials. The preferred cellulose alkyl sulfonate described herein is cellulose ethyl sulfonate. Reinforcing fibers and/or antimicrobial agents are optionally applied to the cellulose alkyl sulfonate.
    Type: Application
    Filed: October 6, 2009
    Publication date: May 27, 2010
    Inventor: Stephen Law