Patents by Inventor Ramasubramani Kuduva Raman Thanumoorthy

Ramasubramani Kuduva Raman Thanumoorthy 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: 20230037449
    Abstract: Pressure sensitive adhesive-coated articles comprising first and second layers each having first and second opposed major surfaces and between the first and second layers a series of first walls providing a series of microchannels, and methods for making the same. Embodiment of articles described herein are useful, for example, in cushioning applications where high levels of compression are desired.
    Type: Application
    Filed: December 16, 2020
    Publication date: February 9, 2023
    Inventors: Robert T. Krasa, James J. Kobe, Becky A. Jetto, Dedra V. Dunevant, Ronald W. Ausen, William J. Kopecky, Ramasubramani Kuduva Raman Thanumoorthy
  • Publication number: 20230031047
    Abstract: A retroreflective article including a binder layer and a plurality of retroreflective elements. Each retroreflective element includes a transparent microsphere partially embedded in the binder layer. At least some of the retroreflective elements include a reflective layer that is embedded between the transparent microsphere and the binder layer. At least some of the embedded reflective layers are localized reflective layers.
    Type: Application
    Filed: September 30, 2022
    Publication date: February 2, 2023
    Inventors: Kui Chen-Ho, Ann M. Gilman, Kevin W. Gotrik, Scott J. Jones, Daniel M. Lentz, Michael A. McCoy, Shri Niwas, Matthew S. Stay, Ramasubramani Kuduva Raman Thanumoorthy, Ying Xia
  • Publication number: 20220380632
    Abstract: The disclosed film backing has a multilayer extensible substrate with a securing adhesive that can secure to a surface and a tab to stretch the extensible substrate to remove the securing adhesive from the underlying surface. Stretching the extensible substrate will easily release the adhesive from the underlying surface. Therefore, a strong adhesive can be used. The multilayer extensible substrate includes an elastic layer forming the core adjacent to a plastically-deforming layers forming the skin to minimize the elasticity of the overall construction.
    Type: Application
    Filed: October 2, 2020
    Publication date: December 1, 2022
    Inventors: Bret W. Ludwig, Abbi G. Johnson, Katelyn M. Leniczek, Lacey M. Strand, Jeffrey O. Emslander, Jacob D. Young, Ramasubramani Kuduva Raman Thanumoorthy, Brian E. Spiewak, Timothy J. Nies, James M. Sieracki
  • Patent number: 11493674
    Abstract: A retroreflective article including a binder layer and a plurality of retroreflective elements. Each retroreflective element includes a transparent microsphere partially embedded in the binder layer. At least some of the retroreflective elements include a reflective layer that is embedded between the transparent microsphere and the binder layer. At least some of the embedded reflective layers are localized reflective layers.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: November 8, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Kui Chen-Ho, Ann M. Gilman, Kevin W. Gotrik, Scott J. Jones, Daniel M. Lentz, Michael A. McCoy, Shri Niwas, Matthew S. Stay, Ramasubramani Kuduva Raman Thanumoorthy, Ying Xia
  • Publication number: 20220276417
    Abstract: A retroreflective article including a binder layer and a plurality of retroreflective elements. Each retroreflective element includes a transparent microsphere partially embedded in the binder layer. At least some of the retroreflective elements include a reflective layer that is a locally-laminated reflective layer that is embedded between the transparent microsphere and the binder layer. At least some of the locally-laminated reflective layers may be localized reflective layers.
    Type: Application
    Filed: May 12, 2022
    Publication date: September 1, 2022
    Inventors: Kevin W. Gotrik, Kui Chen-Ho, Scott J. Jones, Michael A. McCoy, Christopher A. Merton, Shri Niwas, Ramasubramani Kuduva Raman Thanumoorthy, Ying Xia
  • Publication number: 20220243100
    Abstract: Constructions which may be useful as stretch-release tapes comprise: a first pressure sensitive adhesive (PSA) layer; a support layer; and a second pressure sensitive adhesive (PSA) layer; wherein the support layer comprises: 55-95 wt % of an olefinic copolymer of ethylene and alpha-olefin(s) comprising 3-12 carbons; and 5-45 wt % of a first tackifier. Alternately, the support layer comprises: 55-100 wt % of an olefinic copolymer of ethylene and alpha-octene; and 0-45 wt % of a first tackifier. Alternately, the support layer comprises a first tackifier; the first PSA layer comprises a second tackifier; and the second PSA layer comprises a third tackifier; where the first, second, and third tackifiers are the same tackifier. In some embodiments, first and second PSA layers comprise 30-70 wt % of a styrenic copolymer and 30-70 wt % of a tackifier.
    Type: Application
    Filed: May 14, 2020
    Publication date: August 4, 2022
    Inventors: Ross J. DeVolder, Ramasubramani Kuduva Raman Thanumoorthy, Jonathan J. Anderson, Sierra V. Trainor
  • Patent number: 11366252
    Abstract: A retroreflective article including a binder layer and a plurality of retroreflective elements. Each retroreflective element includes a transparent microsphere partially embedded in the binder layer. At least some of the retroreflective elements include a reflective layer that is a locally-laminated reflective layer that is embedded between the transparent microsphere and the binder layer. At least some of the locally-laminated reflective layers may be localized reflective layers.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: June 21, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin W. Gotrik, Kui Chen-Ho, Scott J. Jones, Michael A. McCoy, Christopher A. Merton, Shri Niwas, Ramasubramani Kuduva Raman Thanumoorthy, Ying Xia
  • Publication number: 20210260806
    Abstract: Coextruded articles comprising first and second layers each having first and second opposed major surfaces and between the first and second layers a series of first walls providing a series of microchannels, and methods for making the same. Embodiment of coextruded articles described herein are useful, for example, in cushioning applications where high levels of compression are desired.
    Type: Application
    Filed: June 19, 2019
    Publication date: August 26, 2021
    Inventors: Ramasubramani Kuduva Raman Thanumoorthy, Becky A. Jetto, Dedra V. Dunevant, Ronald W. Ausen, William J. Kopecky, James J. Kobe, Robert T. Krasa
  • Publication number: 20210229948
    Abstract: A winding core comprising: (a) a cylindrical tube having an outer surface and a longitudinal axis; and (b) a core covering comprising a polymeric netting having opposing interior and exterior sides disposed on the outer surface of the cylindrical tube, wherein the polymeric netting comprises an array of a plurality of polymeric ribbons and a plurality of polymeric strands arranged in sheet form with each polymeric ribbon bonded to one or two adjacent polymeric strands and each polymeric strand bonded to one or two adjacent ribbons. Also, rolls of web material wound upon such cures in roll form.
    Type: Application
    Filed: December 28, 2016
    Publication date: July 29, 2021
    Inventors: Joshua M. Retterath, Ronald W. Ausen, Ramasubramani Kuduva Raman Thanumoorthy
  • Publication number: 20210095165
    Abstract: Stretch-release adhesives are provided which are derived from mixtures comprising: a) a tackified styrenic block copolymer comprising: i) one or more tackifiers; and ii) one or more styrenic block copolymers; wherein the weight ratio of i) to ii) is not more than 1.0:2.0; and b) one or more (meth)acrylate polymers. In some embodiments, the weight ratio of a) to b) is between 0.4:1.0 and 5.0:1.0 and in some between 1.0:1.0 and 3.9:1.0. In some embodiments, the one or more styrenic block copolymers comprise at least 90 wt % linear block copolymers. In some embodiments, the tackifiers are miscible with rubbery blocks of the styrenic block copolymers and not miscible with the (meth)acrylate polymers. In some embodiments, the mixture is crosslinked. Tapes comprising stretch-release adhesives according to the present disclosure are also provided.
    Type: Application
    Filed: December 3, 2018
    Publication date: April 1, 2021
    Inventors: Ross J. DeVolder, Ramasubramani Kuduva Raman Thanumoorthy, Michele A. Craton, Rongzhi Huang, Sung-Tso Lin
  • Publication number: 20210078233
    Abstract: Coextended polymeric article comprising a layer comprising first and second opposed major surfaces, wherein a plurality of attached projection pairs comprising first and second projections extend from only the first major surface (i.e., the second major surface is free of any projections), wherein each first projection has at least first and second opposed sides and a height from the first major surface to a distal end, wherein each first projection has at least first and second opposed sides and a height from the first major surface to a distal end. Uses for coextruded polymeric articles described herein include adhesive articles and household cleaning products (e.g., a mop, a duster, a brush, a cleaning cloth, or a lint roller).
    Type: Application
    Filed: February 25, 2019
    Publication date: March 18, 2021
    Inventors: Ronald W. Ausen, Thomas P. Hanschen, William J. Kopecky, Vasav Sahni, Ramasubramani Kuduva Raman Thanumoorthy
  • Publication number: 20200406524
    Abstract: Coextruded polymeric article comprising first segments each having first and second opposed major surfaces and a thickness, the first segments comprising first material; second segments comprising second material, wherein adjacent first segments are joined together via a second segment, wherein the second segments extend from the second major surface past the first major surface of each first adjacent segment and has a distal end, the second segments having first and second oppose sides; first protrusions each extending from the first side of a second segment and extending no more than to the first major surface of the respective first segment adjacent to the second segment, the first protrusions comprising third material; and second protrusions each extending from the first side of a second segment, contacting the first protrusion extending from the second segment and extending not more than to the distal end of the second segment, the second protrusions comprising fourth material, wherein at least one of th
    Type: Application
    Filed: February 25, 2019
    Publication date: December 31, 2020
    Inventors: Ronald W. Ausen, Thomas P. Hanschen, William J. Kopecky, Vasav Sahni, Ramasubramani Kuduva Raman Thanumoorthy
  • Publication number: 20200384677
    Abstract: Coextruded polymeric article (100, 200) comprising first and second opposed major surfaces (111, 211), wherein a plurality of projections (114, 117, 214, 214, 217) extend from only the first major surface (111, 112, 211, 212), wherein each projection (214) has at least first and second opposed sides (218) and a height from the first major surface (111, 112, 211, 212) to a distal end (116, 216), wherein at least a majority by number of the projections (114, 117, 214, 214, 217) have a protrusion (117, 217) extending from It only the first side (118, 218) and extending in one direction not more than to the first major surface (111, 112, 211, 212) and extending in an opposite direction to less than the height of the respective projection (214), wherein the projections (114, 117, 214, 214, 217) extend to the second major surface (111, 112, 211, 212), wherein there are regions (119, 120, 220) extending from the first and second major surfaces (111, 211) that are between projections (114, 117, 214, 214, 217), wherei
    Type: Application
    Filed: January 14, 2019
    Publication date: December 10, 2020
    Inventors: Ronald W. Ausen, Thomas P. Hanschen, William J. Kopecky, Vasav Sahni, Ramasubramani` Kuduva Raman Thanumoorthy
  • Publication number: 20200338799
    Abstract: A coextruded ribbon. The coextruded ribbon includes a first layer and an opposed second layer. The first layer includes a first side optionally having an adhesive thereon. The first layer further includes an opposed second side having a plurality of protrusions extending therefrom. The second layer includes a repellant material contacting the plurality of protrusions.
    Type: Application
    Filed: October 31, 2018
    Publication date: October 29, 2020
    Inventors: Joshua M. Retterath, Emma M. Abbott, Bruce E. Tait, Anthony L. Hill, Ronald W. Ausen, Ramasubramani Kuduva Raman Thanumoorthy, Jeffrey M. Imsande, David J. Kinning, Maria A. Appeaning, Georgiy Teverovskiy
  • Publication number: 20200264350
    Abstract: A retroreflective article including a binder layer and a plurality of retroreflective elements. Each retroreflective element includes a transparent microsphere partially embedded in the binder layer. At least some of the retroreflective elements include a reflective layer that is a locally-laminated reflective layer that is embedded between the transparent microsphere and the binder layer. At least some of the locally-laminated reflective layers may be localized reflective layers.
    Type: Application
    Filed: October 25, 2018
    Publication date: August 20, 2020
    Inventors: Kevin W. Gotrik, Kui Chen-Ho, Scott J. Jones, Michael A. McCoy, Christopher A. Merton, Shri Niwas, Ramasubramani Kuduva Raman Thanumoorthy, Ying Xia
  • Publication number: 20200264349
    Abstract: A retroreflective article including a binder layer and a plurality of retroreflective elements. Each retroreflective element includes a transparent microsphere partially embedded in the binder layer. At least some of the retroreflective elements include a reflective layer that is embedded between the transparent microsphere and the binder layer. At least some of the embedded reflective layers are localized reflective layers.
    Type: Application
    Filed: October 25, 2018
    Publication date: August 20, 2020
    Inventors: Kui Chen-Ho, Ann M. Gilman, Kevin W. Gotrik, Scott J. Jones, Daniel M. Lentz, Michael A. McCoy, Shri Niwas, Matthew S. Stay, Ramasubramani Kuduva Raman Thanumoorthy, Ying Xia
  • Patent number: 10639628
    Abstract: Systems and methods for concentrating a sample and detecting an analyte of interest. The system can include a sample detection container that can include a microcavity. The microcavity can include a top opening, a base, and a longitudinal axis. The container can further include a wall that extends to the microcavity, wherein at least a portion of the wall located adjacent the top opening of the microcavity has a slope that is oriented at an effective angle ? with respect to the longitudinal axis of the microcavity. The effective angle ? can be greater than 45 degrees and less than 90 degrees, and at least the portion of the wall located adjacent the top opening of the microcavity that is oriented at the effective angle ? can have a length of at least 5 times a transverse dimension of the microcavity.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: May 5, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Raj Rajagopal, Kurt J. Halverson, Shawn C. Dodds, Ramasubramani Kuduva Raman Thanumoorthy
  • Publication number: 20200088615
    Abstract: Systems and methods for detecting an analyte of interest. The method can include providing a container (102) adapted to receive a sample (152). The container can include a microstructured surface (130). The method can further include positioning a sample in the container; adding an H2S probe and an enzyme substrate to the container; centrifuging the container toward the microstructured surface to form a sediment and a supernatant of the sample; inverting the container, after centrifuging the container, to remove at least a portion of the supernatant from being in contact with the microstructured surface; and interrogating the concentrate in the microstructured surface for the analyte of interest.
    Type: Application
    Filed: November 29, 2017
    Publication date: March 19, 2020
    Inventors: Raj Rajagopal, Evan D. Brutinel, Ramasubramani Kuduva Raman Thanumoorthy
  • Patent number: 9909969
    Abstract: Method for detecting an analyte of interest in a sample. The method can include providing a container including a microstructured surface, and centrifuging the container toward the microstructured surface to form a sediment and a supernatant of the sample. Following centrifugation, the container can be inverted to decant at least a portion of the supernatant of the sample from the second portion, such that a concentrate (e.g., including the sediment) of the sample is retained in the microstructured surface. The concentrate can then be interrogated in the microstructured surface for the analyte of interest. In some embodiments, at least a portion of the second portion can be substantially transparent, such that the concentrate can be interrogated from the outside of the container, without requiring that the container be opened prior to interrogation.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: March 6, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Kurt J. Halverson, Raj Rajagopal, Ramasubramani Kuduva Raman Thanumoorthy
  • Publication number: 20170010199
    Abstract: Method for detecting an analyte of interest in a sample. The method can include providing a container comprising a microstructured surface, and centrifuging the container toward the microstructured surface to form a sediment and a supernatant of the sample. Following centrifugation, the container can be inverted to decant at least a portion of the supernatant of the sample from the second portion, such that a concentrate (e.g., comprising the sediment) of the sample is retained in the microstructured surface. The concentrate can then be interrogated in the microstructured surface for the analyte of interest. In some embodiments, at least a portion of the second portion can be substantially transparent, such that the concentrate can be interrogated from the outside of the container, without requiring that the container be opened prior to interrogation.
    Type: Application
    Filed: September 21, 2016
    Publication date: January 12, 2017
    Inventors: Kurt J. Halverson, Raj Rajagopal, Ramasubramani Kuduva Raman Thanumoorthy