Patents by Inventor Chathuranga C. De Silva

Chathuranga C. De Silva 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: 20230247990
    Abstract: The present technology relates to stable antimicrobial compositions comprising a combination of undecylenic acid and one or more organic acids or salts thereof, which can be useful for sanitizing laundry and fabrics. These botanical compositions can still achieve antimicrobial efficacy and keep bacteria counts low while exhibiting exceptional stability. The present technology also relates to methods of disinfecting laundry or fabrics, comprising contacting such compositions to the laundry or fabrics, including adding any of the compositions to a washing machine or automatic laundering machine.
    Type: Application
    Filed: July 2, 2021
    Publication date: August 10, 2023
    Inventors: Shanta S Modak, Chathuranga C De Silva, Nayana Baiju
  • Publication number: 20230180749
    Abstract: The present technology relates to botanical antimicrobial compositions that comprise various ingredients, including undecylenic acid, organic acid or solvents; and that can be used as surface cleaners, disinfectants, sanitizers, or preservatives for food or consumer products. The present technology also relates to methods of disinfecting or sanitizing surfaces, or preserving food or personal care compositions, comprising contacting such surfaces, or food or personal care compositions, with an antimicrobial composition herein.
    Type: Application
    Filed: January 3, 2023
    Publication date: June 15, 2023
    Inventors: SHANTA M. MODAK, NAYANA BAIJU, CHATHURANGA C. DE SILVA
  • Publication number: 20210355276
    Abstract: Disclosed herein are ketal compounds, oligomers, and polyketals that are obtained in both high purity and high yield. These ketals and polyketals are utilized for their ability to readily release small chemical molecules, preferably fragrance molecules. Also disclosed are the utility of ketals and polyketals as delivery vehicles for controlled release of fragrances over time and/or on demand.
    Type: Application
    Filed: September 16, 2019
    Publication date: November 18, 2021
    Inventors: Chathuranga C. DE SILVA, Porakrit LEOPHAIRATANA, Jeffrey T. KOBERSTEIN
  • Publication number: 20210346425
    Abstract: The present technology relates to botanical film-forming compositions useful for the treatment of acne related skin disorders, as well as methods of treating such disorders. The compositions herein are advantageous in that they treat acne related skin disorders quickly and with minimal irritation and side effects.
    Type: Application
    Filed: February 18, 2021
    Publication date: November 11, 2021
    Inventors: Shanta M. Modak, Chathuranga C. De Silva
  • Publication number: 20210196621
    Abstract: The present technology relates to alcohol-free botanical oral care compositions that are stable, natural, non-irritating and effective against oral pathogens. In various embodiments, these compositions can be in the form of an oral rinse, a toothpaste, an oral patch, an oral spray, a dental floss, or a lozenge. The present technology also relates to methods of treating a wound, and methods of coating a medical device, using any of the compounds discussed herein.
    Type: Application
    Filed: May 23, 2019
    Publication date: July 1, 2021
    Inventors: Shanta M. Modak, Chathuranga C. De Silva
  • Publication number: 20200352991
    Abstract: The present technology relates to film forming compositions comprising antimicrobial agents, as well as to methods of inhibiting bacterial growth, controlling the rate of release of an antimicrobial agent from a film forming polymer, coating a medical device, rendering the inner lumen of a medical device biofilm resistant, and treating a human or animal.
    Type: Application
    Filed: July 27, 2018
    Publication date: November 12, 2020
    Inventors: Shanta M. Modak, Chathuranga C. De Silva, Anand Arvind Zanwar, Mahabaleshwar Hegde, Arnab Kumar Ghosh
  • Publication number: 20190374573
    Abstract: The present technology relates to botanical film-forming compositions useful for the treatment of acne related skin disorders, as well as methods of treating such disorders. The compositions herein are advantageous in that they treat acne related skin disorders quickly and with minimal irritation and side effects.
    Type: Application
    Filed: May 17, 2019
    Publication date: December 12, 2019
    Inventors: Shanta M. Modak, Chathuranga C. De Silva
  • Publication number: 20190133126
    Abstract: Disclosed herein are compositions useful for coating medical devices which have antimicrobial (anti-infective) qualities and which are simple to manufacture and cost-effective, and therefore suitable for global use, including in developing countries with economic constraints, and in a cost-conscious healthcare environment. In one embodiment, disclosed are formulations that include chlorhexidine (CHX), curcumin (CUR), for example, curcumin C3 complex, and a silver (Ag) salt. Other embodiments pertain to compositions that include CHX, Ag and a lubricating agent. The antimicrobial coatings made according to embodiments of the invention are easier to produce, have superior efficacy and devices coated with this composition show initial release of antimicrobials and prolonged prevention of bacterial adherence, compared to currently available alternatives, to significantly reduce device-related infection especially catheter associated urinary tract infection.
    Type: Application
    Filed: May 10, 2017
    Publication date: May 9, 2019
    Inventors: Shanta M. Modak, Arnab Kumar Ghosh, Chathuranga C. De Silva, Mahabaleshwar Hegde, Anand Arvind Zanwar, Santoshkumar Hanmantrao Dongre, Shivajirao S. Kadam