Patents by Inventor Muralidhar Lalagiri

Muralidhar Lalagiri 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).

  • Substrate for efficient use in sanitizing and disinfecting
    Patent number: 11944095
    Abstract: The current invention relates to modifying the surface of a cellulose-containing nonwoven substrate carrying a quaternary ammonium compound. A material for a nonwoven disinfecting wipe is provided which material includes a nonwoven substrate comprising cellulose and synthetic fibers and a combination of poly(vinylamine) and poly(amideamine-epichlorohydrin). Further, a method is provided for preparing a material for a nonwoven disinfecting wipe, the method comprising treating a nonwoven substrate comprising cellulose with poly(vinylamine) and poly(amideamine-epichlorohydrin).
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: April 2, 2024
    Assignee: Suominen Corporation
    Inventors: Rui Ferreira, Muralidhar Lalagiri, Avinav G. Nandgaonkar
  • Method for preparing a nonwoven web
    Patent number: 11598033
    Abstract: The present invention relates to a method for producing a nonwoven fabric. The method according to the invention comprises forming a nonwoven web using a wet lay forming process, hydroentangling the web and providing the web with a high quality hydroembossed pattern. The invention also concerns a nonwoven fabric exhibiting a three dimensional pattern, which remains even in wet wipes prepared from the material.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: March 7, 2023
    Assignee: Suominen Oyj
    Inventors: Gian Luca Polosa, Muralidhar Lalagiri, Laura LaPlante, Miika Nikinmaa, Avinav G. Nandgaonkar
  • SUBSTRATE FOR EFFICIENT USE IN SANITIZING AND DISINFECTING
    Publication number: 20210106003
    Abstract: The current invention relates to modifying the surface of a cellulose-containing nonwoven substrate carrying a quaternary ammonium compound. A material for a nonwoven disinfecting wipe is provided which material includes a nonwoven substrate comprising cellulose and synthetic fibers and a combination of poly(vinylamine) and poly(amideamine-epichlorohydrin). Further, a method is provided for preparing a material for a nonwoven disinfecting wipe, the method comprising treating a nonwoven substrate comprising cellulose with poly(vinylamine) and poly(amideamine-epichlorohydrin).
    Type: Application
    Filed: April 5, 2018
    Publication date: April 15, 2021
    Inventors: Rui Ferreira, Muralidhar Lalagiri, Avinav G. Nandgaonkar
  • Method for preparing a nonwoven web
    Publication number: 20200308742
    Abstract: The present invention relates to a method for producing a nonwoven fabric. The method according to the invention comprises forming a nonwoven web using a wet lay forming process, hydroentangling the web and providing the web with a high quality hydroembossed pattern. The invention also concerns a nonwoven fabric exhibiting a three dimensional pattern, which remains even in wet wipes prepared from the material.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 1, 2020
    Inventors: Gian Luca Polosa, Muralidhar Lalagiri, Laura LaPlante, Miika Nikinmaa, Avinav G. Nandgaonkar