Patents by Inventor C. Kumar

C. Kumar 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: 20200270457
    Abstract: A silsesquixane polymer, a composition including such silsesquixane polymer, and an article including such polymer or composition, wherein the composition includes a silsesquioxane polymer and a free siloxane; wherein the silsesquioxane polymer includes a three-dimensional network of Formula (I): wherein: each R1 and R2 is independently a (C1-C4)alkyl; each L1 is independently a single bond, an alkylene, or an alkylene bonded to a group selected from oxy, thio, carbonyl, —NH—, and combinations thereof; each R3 is independently a linear (C14-C100)alkyl; with the proviso that L1 is selected such that each Si atom is directly bonded to an alkylene or an alkyl; m is an integer of at least 2; n is an integer of at least 1; m+n is an integer of at least 10; each oxygen atom at an asterisk (*) is bonded to another Si atom within the three-dimensional network; and the silsesquioxane polymer is a solid at 25° C.
    Type: Application
    Filed: September 13, 2018
    Publication date: August 27, 2020
    Inventors: Jitendra S. Rathore, Ramesh C. Kumar, Chetan P. Jariwala
  • Publication number: 20200244031
    Abstract: A semiconductor laser tuned with an acousto-optic modulator. The acousto-optic modulator may generate standing waves or traveling waves. When traveling waves are used, a second acousto-optic modulator may be used in a reverse orientation to cancel out a chirp created in the first acousto-optic modulator. The acousto-optic modulator may be used with standing-wave laser resonators or ring lasers.
    Type: Application
    Filed: April 7, 2020
    Publication date: July 30, 2020
    Inventors: C. Kumar N. Patel, Arkadiy Lyakh
  • Patent number: 10723815
    Abstract: Methods for preparing silicone-containing polymers by essentially adiabatic polymerization methods are disclosed. The polymerization system includes free radically polymerizable monomers. The monomers include ethylenically unsaturated silicone-containing monomers and/or mercapto-functional silicones as well as additional free radically polymerizable monomers. The silicone-containing polymers are useful as adhesives or release materials.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: July 28, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Audrey A. Sherman, Mark F. Ellis, Ramesh C. Kumar, Sonja S. Mackey, Richard L. Peloquin, Jeffrey O. Emslander
  • Publication number: 20200220333
    Abstract: The present invention is directed to an ultra-compact dual quantum cascade laser assembly that nearly doubles the strength of a traditional laser in a in a single hermetically sealed micropackage. The device may comprise two quantum cascade lasers that meet at a combiner to create a single laser with a higher strength than traditional lasers. The current invention provides a path to an ultra-compact coherent beam combing arrangement that uses both dichroic beam combining and polarization beam combining techniques.
    Type: Application
    Filed: March 18, 2020
    Publication date: July 9, 2020
    Applicant: Pranalytica, Inc.
    Inventors: Rodolfo Barron-Jimenez, C. Kumar N. Patel
  • Publication number: 20200198292
    Abstract: The disclosure relates to articles comprising a substrate, a pressure sensitive adhesive, and a release layer, wherein the release layer comprises at least one silicone carbonate polymer.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 25, 2020
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: PHILLIP H. HENNA, RAMESH C. KUMAR
  • Patent number: 10671244
    Abstract: A system and method for displaying a user interface may include an examination and/or elimination of positional bias of interactive categories in order to drive user engagement. A method or system configured to execute the method on a user interface may include creating a first arrangement of categories. The arrangement can be shown on a user device to one or more users a selected number of times. The users' interactions with the categories in the interface may be recorded. The method may further include creating a second arrangement, which is different from the first arrangement, and this second arrangement may be shown to the users the selected number of times and the users' interactions with the second arrangement may be recorded. Based on the frequency of user interactions with the first and second arrangement, a ranked set of the categories may be created and displayed to users.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: June 2, 2020
    Assignee: Home Depot Product Authority, LLC
    Inventor: Toshivv C. Kumar
  • Patent number: 10640614
    Abstract: Segmented silicone polyamide block copolymers that comprise dimer acid residues and articles containing the same.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: May 5, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Rajeep S. Kalgutkar, Ramesh C. Kumar, David S. Hays, Joseph A. Severance, Timothy M. Hackbarth
  • Patent number: 10622787
    Abstract: The present invention is directed to an ultra-compact dual quantum cascade laser assembly that nearly doubles the strength of a traditional laser in a in a single hermetically sealed micropackage. The device may comprise two quantum cascade lasers that meet at a combiner to create a single laser with a higher strength than traditional lasers. The current invention provides a path to an ultra-compact coherent beam combing arrangement that uses both dichroic beam combining and polarization beam combining techniques.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: April 14, 2020
    Assignee: PRANALYTICA, INC.
    Inventors: Rodolfo Barron-Jimenez, C. Kumar N. Patel
  • Publication number: 20200109314
    Abstract: A method of making an adhesive article is described comprising melt extruding a core film layer comprising a comport comprising at least 50% of a polylactic acid polymer. The method further comprises melt extruding an adhesive layer on a major surface of the core film layer such that regions of interdiffusion are present between the core film layer and adhesive layer. The adhesive layer may comprise C1-C10 (meth)acrylic acid or ester thereof, vinyl acetate, ethylene vinyl acetate, hydrolysed polyvinyl alcohol and combinations thereof. The adhesive layer may also be a pressure sensitive adhesive. The method further comprises melt extruding a release film layer on an opposing major surface of the core film layer. The layers are sequentially extruded or co-extruded and can be uniaxially or biaxially oriented. Articles comprising a core film layer comprising a composition comprising at least 50% of a polylactic acid polymer and an adhesive layer disposed on a major surface of the core layer are also described.
    Type: Application
    Filed: December 1, 2017
    Publication date: April 9, 2020
    Inventors: William W. Merrill, Jeffrey P. Kalish, Jacob D. Young, Ramesh C. Kumar, Sonja S. Mackey, Kanta Kumar, Ignatius A. Kadoma, Michael D. Crandall, Adam R. Wohl
  • Patent number: 10611123
    Abstract: The disclosure relates to articles comprising a substrate, a pressure sensitive adhesive, and a release layer, wherein the release layer comprises at least one silicone carbonate polymer.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: April 7, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Phillip H. Henna, Ramesh C. Kumar
  • Patent number: 10615562
    Abstract: A semiconductor laser tuned with an acousto-optic modulator. The acousto-optic modulator may generate standing waves or traveling waves. When traveling waves are used, a second acousto-optic modulator may be used in a reverse orientation to cancel out a chirp created in the first acousto-optic modulator. The acousto-optic modulator may be used with standing-wave laser resonators or ring lasers.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: April 7, 2020
    Assignee: PRANALYTICA, INC.
    Inventors: C. Kumar N. Patel, Arkadiy Lyakh
  • Patent number: 10555889
    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: Grant
    Filed: June 27, 2016
    Date of Patent: February 11, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Ranjani V. Parthasarathy, Ramesh C. Kumar, Matthew T. Scholz, Steven P. Swanson, Erin A. Satterwhite
  • Patent number: 10513872
    Abstract: A latch assembly that is adjustable between first and second backset settings. A cam is rotatable about a cam axis, and facilitates linear displacement of a latch link in a first direction. A multiplier link is rotatable about a multiplier link axis that is offset from the cam axis can be rotated in the first rotational direction by engagement with the latch link. A latch bar is coupled to the multiplier link and is linearly displaced in a second direction by rotation of the multiplier link in the first direction. The latch apparatus also includes a latch bolt that is coupled to the latch bar, the latch bolt being displaced toward a retracted position by the displacement of the latch bar in the second direction. The latch assembly can also include a dead latch link can block retraction of at least the latch bolt.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: December 24, 2019
    Assignee: Schlage Lock Company LLC
    Inventors: Hassan C. Kumar, Nathanael S. Murphy, Peter Malenkovic, Allen Mani, Madhu H. Siddaramaiah
  • Patent number: 10502869
    Abstract: An optical article includes an optical element, a low refractive index layer disposed on the optical element having an effective refractive index of 1.3 or less and a polymeric protective layer disposed on the low refractive index layer. The low refractive index layer includes a binder, a plurality of metal oxide particles dispersed in the binder, and a plurality of interconnected voids. The polymeric protective layer does not increase an effective refractive index of the optical article by greater than 10%.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: December 10, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: William D. Coggio, Ramesh C. Kumar, John A. Wheatley, Michael L. Steiner, William F. Edmonds, Lan H. Liu, Encai Hao, Robert F. Kamrath, John J. Stradinger
  • Publication number: 20190336409
    Abstract: Disclosed herein are methods that include contacting a skin surface with a first liquid composition; and then contacting in the skin surface with a cationic coated article loaded with a second liquid composition, while at least some portion of the first liquid composition remains on the skin surface, wherein one or both of the first liquid composition or the second liquid composition includes acrylate copolymer particles dispersed therein, the acrylate copolymer particles including 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 where the wt % of the high Tg monomer is with respect to the total weight of the monomers in the reaction mixture; and from about 20 wt % to about 80 wt % of at least one low Tg monomer where the wt % of the low Tg monomer is with respect to the total weight of the monomers in the reaction mixture, wherein the particles have a number average diameter of at lea
    Type: Application
    Filed: January 2, 2018
    Publication date: November 7, 2019
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: RANJANI V. PARTHASARATHY, RAMESH C. KUMAR, MATTHEW T. SCHOLZ, STEVEN P. SWANSON, ANDREW W. VAIL, JERALD K. RASMUSSEN, GEORGE W. GRIESGRABER, CATHERINE D. HEAPY
  • Patent number: 10465017
    Abstract: Methods for preparing silicone-containing polymers by essentially adiabatic polymerization methods are disclosed. The polymerization system includes free radically polymerizable monomers. The monomers include ethylenically unsaturated silicone-containing monomers and/or mercapto-functional silicones as well as additional free radically polymerizable monomers. The silicone-containing polymers are useful as adhesives or release materials.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: November 5, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Audrey A. Sherman, Mark F. Ellis, Ramesh C. Kumar, Sonja S. Mackey, Richard L. Peloquin, Jeffrey O. Emslander
  • Publication number: 20190292325
    Abstract: Segmented silicone polyamide block copolymers that comprise dimer acid residues and articles containing the same.
    Type: Application
    Filed: July 20, 2017
    Publication date: September 26, 2019
    Inventors: Rajeep S. KALGUTKAR, Ramesh C. KUMAR, David S. Hays, Joseph A. SEVERANCE, Timothy M. HACKBARTH
  • Publication number: 20190284357
    Abstract: Compositions and films are described comprising a polylactic (PLA) polymer and a copolymer comprising a first moiety comprising a C12-C30 alkyl group and a second moiety that is miscible in the composition. Suitable first moieties include a C12-C30 alkyl (meth)acrylate or a polyvinyl alcohol comprising pendent C12-C30 alkyl groups. Suitable second moieties include C1-C10 (meth)acrylic acid or ester thereof, vinyl acetate and ethylene vinyl acetate. The aforementioned composition may be used to form a release layer of an adhesive article such as a pressure sensitive adhesive tape. The films may be a monolithic film or a film layer of a multilayer film. The release layer may be disposed upon a substrate layer that may also comprise PLA. The films are produced by melt extrusion of the aforementioned composition and may be oriented.
    Type: Application
    Filed: November 29, 2017
    Publication date: September 19, 2019
    Inventors: William W. Merrill, Jeffrey P. Kalish, Jacob D. Young, Ramesh C. Kumar, Sonja S. Mackey, Kanta Kumar, Adam R. Wohl, David J. Kinning, Michael D. Crandall, Ignatius A. Kadoma
  • Publication number: 20190263972
    Abstract: A copolymer composition that includes a silicone copolymer, methods of making the composition, and articles that include the composition, wherein the copolymer composition includes a silicone copolymer having a backbone composition that includes: silicone segments in an amount of 5 wt-% to 40 wt-%, based on the total weight of the silicone copolymer; hydrophilic segments in an amount of 40 wt-% to 75 wt-%, based on the total weight of the silicone copolymer; and reinforcing segments in an amount of 5 wt-% to 30 wt-%, based on the total weight of the silicone copolymer, wherein the reinforcing segments are derived from the reaction of one or more chain extenders with one or more multi-functional isocyanates, multi-functional carboxylic acids, multi-functional anhydrides, multi-functional esters, and/or multi-functional acid halides; wherein the silicone segments, hydrophilic segments, and reinforcing segments are connected through urea, urethane, amide, and/or oxamide linkages; wherein the hydrophilic segments
    Type: Application
    Filed: October 23, 2017
    Publication date: August 29, 2019
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: HANNAH C. COHEN, AMANDA C. ENGLER, RAN JAN I V. PARTHASARATHY, HAOMING RONG, RAMESH C. KUMAR, MATTHEW T. SCHOLZ, JAMES P. DIZIO, AUDREY A. SHERMAN, RICHARD G. HANSEN, DOUGLAS A. HANGGI, DALE J. CASE, DAVID D. JOHNSON
  • Publication number: 20190237939
    Abstract: The present invention is directed to an ultra-compact dual quantum cascade laser assembly that nearly doubles the strength of a traditional laser in a in a single hermetically sealed micropackage. The device may comprise two quantum cascade lasers that meet at a combiner to create a single laser with a higher strength than traditional lasers. The current invention provides a path to an ultra-compact coherent beam combing arrangement that uses both dichroic beam combining and polarization beam combining techniques.
    Type: Application
    Filed: January 28, 2019
    Publication date: August 1, 2019
    Inventors: Rodolfo Barron-Jimenez, C. Kumar N. Patel