Patents by Inventor Ranjani V. Parthasarathy

Ranjani V. Parthasarathy 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: 20190275191
    Abstract: An article having anti-microbial effect is provided. The article includes an occlusive layer; a substrate overlaying the occlusive layer, wherein the substrate having two opposing major surfaces; a metal oxide layer overlaying one opposing major surface of the substrate, wherein the metal oxide layer comprises a metal oxide; and a metal layer overlaying the other opposing major surface of the substrate; wherein the substrate is between the metal oxide layer and the metal layer; and wherein electric potential of the metal oxide layer is at least 0.454V more than electric potential of the metal layer.
    Type: Application
    Filed: October 5, 2017
    Publication date: September 12, 2019
    Inventors: Junkang Jacob Liu, Ta-Hua Yu, Amy K. McNulty, Narina Y. Stepanova, Badri Veeraraghavan, Eric J. Olson, Matthew T. Scholz, Ranjani V. Parthasarathy, Kevin D. Hagen
  • Publication number: 20190261970
    Abstract: Shapeable articles with structured elements and kits including one or more of the shapeable articles. The shapeable articles described herein have a variety of uses including use as surgical retractors for moving and/or restraining tissue and/or organs to improve access to a surgical site. The shapeable articles described herein can be shaped or manipulated into three-dimensional shapes without the use of tools and hold those shapes after removal of the force required to achieve the shape.
    Type: Application
    Filed: October 23, 2017
    Publication date: August 29, 2019
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: RANJANI V. PARTHASARATHY, HANNAH C. COHEN, HAOMING RONG, AMANDA C. ENGLER, WILLIAM BEDINGHAM, NICHOLAS R. ROWLEY, KOREY W. KARLS, MICHAEL J. VOSTAL, MATTHEW T. SCHOLZ, MICHELLE H. STEVENS, CATHERINE D. HEART
  • Patent number: 10342628
    Abstract: Surgical incise drapes including incision edge protectors are described. Methods of protecting the exposed edges of a surgical incision are also discussed.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: July 9, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Matthew T. Scholz, Nicholas R. Powley, Ranjani V. Parthasarathy
  • Publication number: 20190105416
    Abstract: A method of disinfecting a medical device comprises three steps. First, a disinfectant is contacted with a process indicator and the medical device. The disinfectant comprises at least one aldehyde. The process indicator contains a synthetic amine-containing compound disposed on a substrate. The synthetic amine-containing compound comprises at least one of primary amino groups or secondary amino groups, and is reactive with the disinfectant to form at least one adduct. The synthetic amine-containing compound and the medical device are in fluid communication through the disinfectant. A predetermined disinfectant exposure criterion exists for contacting the disinfectant with the medical device. Second, the process indicator is spectrally observed and at least one parameter is obtained therefrom that is predictive of the predetermined disinfectant exposure criterion. The third step is determining that the predetermined disinfectant exposure criterion has been achieved.
    Type: Application
    Filed: April 25, 2017
    Publication date: April 11, 2019
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: NAIYONG JING, RYAN T. WOLDT, WENSHENG XIA, KEVIN D. LANDGREBE, TIMOTHY J. NIES, BRYAN A. BAKER, SEMRA COLAK ATAN, GARY W. JORGENSEN, GIUSEPPE M. BOMMARITO, DAVID P. SWANSON, GEORGE W. GRIESGRABER, RANJANI V. PARTHASARATHY
  • Publication number: 20180369118
    Abstract: Disclosed herein are methods for removing spores from skin, the method including dispensing an effective amount of a composition into or onto an article, wherein the composition includes water and from 0.15 wt % to 4 wt % anionic thickener; contacting a skin surface with the composition; mechanically acting on the skin surface for at least one (1) second while the skin surface is in the presence of the composition; and removing at least a portion of the composition from the surface of the skin, wherein removing the composition also removes spores from the skin surface.
    Type: Application
    Filed: December 19, 2016
    Publication date: December 27, 2018
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: RANJANI V. PARTHASARATHY, CATHERINE D. HEAPY, TIFFANY J. HANSON, BRITTNEY K.T. SCOTT, JONATHAN D.M. HELANDER
  • Publication number: 20180362895
    Abstract: Disclosed herein are methods for removing spores from skin, the method including dispensing an effective amount of a composition into or onto an article, wherein the composition includes water and from about 0.04 wt % to about 4 wt % polymeric cationic antimicrobial, nonionic antimicrobial or combinations thereof; contacting a skin surface with the composition; mechanically acting on the skin surface for at least one (1) second while the skin surface is in the presence of the composition; and removing at least a portion of the composition from the surface of the skin, wherein removing the composition also removes spores from the skin surface.
    Type: Application
    Filed: December 19, 2016
    Publication date: December 20, 2018
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: RANJANI V. PARTHASARATHY, CATHERINE D. HEAPY, TIFFANY J. HANSON, BRITTNEY K.T. SCOTT, JONATHAN D.M. HELANDER
  • Publication number: 20180360728
    Abstract: Disclosed herein are compositions that include at least about 85 wt % of a hydroalcoholic solution that includes at least about 1 wt % water; and about 30 to about 85 wt % of at least one C1 to C4 alkyl alcohol based on the total weight of the hydroalcoholic solution; and acrylate copolymer particles dispersed in the hydroalcoholic solution, the acrylate copolymers particles being the reaction product of a reaction mixture, the reaction mixture including monomers, the monomers including from about 5 wt % to about 50 wt % of at least one high Tg monomer; and from about 20 w% to about 80 wt % of at least one low Tg monomer where the wt % of the low and high Tg monomers are with respect to the total weight of the monomers in the reaction mixture, wherein the particles have a number average diameter of at least about 100 nm.
    Type: Application
    Filed: June 27, 2016
    Publication date: December 20, 2018
    Inventors: Ranjani V. Parthasarathy, Ramesh C. Kumar, Matthew T. Scholz, Steven P. Swanson, Erin A. Satterwhite
  • Patent number: 9809717
    Abstract: The disclosure provides polymers having antimicrobial activity and articles with the polymers coated thereon. The polymers include a first pendant group comprising a first cationic component, a second pendant group comprising a nonpolar component, and a third pendant group comprising an organosilane component. The disclosure also includes methods of coating medical device articles and body fluid-receiving substrates with the antimicrobial polymers. The methods further include the use of adhesion-promoting components.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: November 7, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Mahfuza B. Ali, Naiyong Jing, Valeri Lirine, Pradnya V. Nagarkar, Caroline M. Ylitalo, Nancy S. Lennhoff, Matthew T. Scholz, Ranjani V. Parthasarathy
  • Patent number: 9588052
    Abstract: Water-based formulations comprising an indicating composition dispersed in water are described. The water-based indicating compositions include an organic Bi(III) compound, a sulfur source, and a carbonate salt. Formulations further including a resin and/or an acidic additive are also described.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: March 7, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin D. Landgrebe, Ranjani V. Parthasarathy, Anthony E. Bennett, Peter T. Elliott, Steven S. Kirckof
  • Patent number: 9468614
    Abstract: A method of moisturizing while decolonizing mammalian tissue, comprising applying a multi-valent cationic antiseptic composition to the tissue, and applying a moisturizer composition to at least a portion of the same tissue is provided. An oral care kit comprising a composition comprising the multi-valent cationic antiseptic and the moisturizer composition, and a method of moisturizing oral tissue of a patient requiring intubation using the moisturizer composition and an endotracheal tube coated or impregnated with a cationic antiseptic are also provided.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: October 18, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Katie F. Wlaschin, Alan R. Dombrowski, Matthew T. Scholz, Ranjani V. Parthasarathy
  • Publication number: 20160213001
    Abstract: An antiseptic composition comprising a multivalent cationic antiseptic present in an amount of 0.05 to 0.5 percent based upon the ready to use composition; an anionic compound which is water soluble in an amount of at least 0.1 grams in 100 grams water at 23 deg C., wherein the anionic compound is present at a concentration which would result in precipitation of the multivalent cationic antiseptic in the composition without a solubilizing surfactant present; wherein the composition, with the antiseptic, surfactant and anionic compound combined with each other, is free of precipitate.
    Type: Application
    Filed: September 11, 2014
    Publication date: July 28, 2016
    Inventors: RANJANI V. PARTHASARATHY, MATTHEW T. SCHOLZ, JOSHUA X. XIONG, CATHERINE D. HEAPY
  • Patent number: 9320834
    Abstract: The present disclosure provides antimicrobial compositions including a polyhaloolefin polymer, a cationic antimicrobial agent, and a vehicle that includes a plasticizer and a heat stabilizer. The cationic antimicrobial agent can be partially soluble in the vehicle. The present disclosure also provides for articles formed from the composition, with cationic antimicrobial agent incorporated throughout the polymer matrix, as well as methods of manufacturing the composition.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: April 26, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Ranjani V. Parthasarathy, John M. Heapy, Vinod P. Menon, Matthew T. Scholz
  • Patent number: 9176103
    Abstract: Chemical indicator compositions comprising a bismuth compound; elemental sulfur; and a compound with relatively high water solubility which makes the composition alkaline when exposed to water vapor at an elevated temperature; a chemical indicator comprising a substrate and the composition coated on at least a portion of a major surface of the substrate; and methods of making and using the chemical indicator are disclosed.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: November 3, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: David A. Whitman, David M. Read, Ranjani V. Parthasarathy, Kevin D. Landgrebe, Anthony E. Bennett
  • Publication number: 20150245871
    Abstract: Surgical incise drapes including incision edge protectors are described. Methods of protecting the exposed edges of a surgical incision are also discussed.
    Type: Application
    Filed: September 20, 2013
    Publication date: September 3, 2015
    Inventors: Matthew T. Scholz, Nicholas R. Powley, Ranjani V. Parthasarathy
  • Publication number: 20150165097
    Abstract: The present disclosure provides antimicrobial compositions including a polyhaloolefin polymer, a cationic antimicrobial agent, and a vehicle that includes a plasticizer and a heat stabilizer. The cationic antimicrobial agent can be partially soluble in the vehicle. The present disclosure also provides for articles formed from the composition, with cationic antimicrobial agent incorporated throughout the polymer matrix, as well as methods of manufacturing the composition.
    Type: Application
    Filed: July 2, 2013
    Publication date: June 18, 2015
    Inventors: Ranjani V. Parthasarathy, John M. Heapy, Vinod P. Menon, Matthew T. Scholz
  • Publication number: 20150024019
    Abstract: The disclosure provides polymers having antimicrobial activity and articles with the polymers coated thereon. The polymers include a first pendant group comprising a first cationic component, a second pendant group comprising a nonpolar component, and a third pendant group comprising an organosilane component. The disclosure also includes methods of coating medical device articles and body fluid-receiving substrates with the antimicrobial polymers. The methods further include the use of adhesion-promoting components.
    Type: Application
    Filed: May 25, 2011
    Publication date: January 22, 2015
    Inventors: Mahfuza B. Ali, Naiyong Jing, Valeri Lirine, Pradnya V. Nagarkar, Caroline M. Ylitalo, Nancy S. Lennhoff, Matthew T. Scholz, Ranjani V. Parthasarathy
  • Publication number: 20140373851
    Abstract: An article, comprising: an enclosure comprising: a first film layer; a second film layer, wherein the first film layer and the second film layer are sealed together to form at least one interior region for enclosing a liquid; and an adhesive layer disposed on an exterior surface of the first film layer; wherein the at least one interior region is liquid-filled.
    Type: Application
    Filed: December 27, 2012
    Publication date: December 25, 2014
    Inventors: Nicholas R. Powley, Matthew T. Scholz, Erin A. Satterwhite, Andrew P. Flaherty, Ranjani V. Parthasarathy
  • Publication number: 20140370604
    Abstract: Water-based formulations comprising an indicating composition dispersed in water are described. The water-based indicating compositions include an organic Bi(III) compound, a sulfur source, and a carbonate salt. Formulations further including a resin and/or an acidic additive are also described.
    Type: Application
    Filed: December 18, 2012
    Publication date: December 18, 2014
    Inventors: Kevin D. Landgrebe, Ranjani V. Parthasarathy, Anthony E. Bennett, Peter T. Elliott, Steven S. Kirckof
  • Patent number: 8835157
    Abstract: Methods of providing at least one reagent for use in a device for processing sample material, delivering at least one reagent to a device for processing sample material, and adding at least one reagent to at least one of the steps in a process for detecting or assaying a nucleic acid; a support film coated with a dry reagent layer; and a device for processing sample material having a support film coated with a dry reagent layer contained within at least one chamber of the device are disclosed.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: September 16, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Ranjani V. Parthasarathy, Michael E. Danielson, John C. Faletti, William Bedingham
  • Publication number: 20130298911
    Abstract: A method of moisturizing while decolonizing mammalian tissue, comprising applying a multi-valent cationic antiseptic composition to the tissue, and applying a moisturizer composition to at least a portion of the same tissue is provided. An oral care kit comprising a composition comprising the multi-valent cationic antiseptic and the moisturizer composition, and a method of moisturizing oral tissue of a patient requiring intubation using the moisturizer composition and an endotracheal tube coated or impregnated with a cationic antiseptic are also provided.
    Type: Application
    Filed: May 14, 2013
    Publication date: November 14, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Katie F. Wlaschin, Alan R. Dombrowski, Matthew T. Scholz, Ranjani V. Parthasarathy