Patents by Inventor Pallab Sinha Mahapatra

Pallab Sinha Mahapatra 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).

  • Wettability-patterning method and designs for pumpless transport and precise manipulation of liquid volumes on and through porous materials
    Patent number: 11648553
    Abstract: A material for manipulating liquid includes a porous substrate having first and second surfaces; and a wedge-shaped transport element disposed on one of the first and second surfaces, wherein the wedge-shaped transport element has a narrow end and a wide end, the wide end connected to a first reservoir, wherein the wedge-shaped transport element is configured to pass liquid from the narrow end to the wide end to the first reservoir, regardless of gravity, and wherein the first reservoir is configured to pass liquid away from the substrate in a z-direction opposite from the surface on which a liquid is deposited. The surface on which the wedge-shaped transport element is disposed is one of hydrophobic or superhydrophobic, and the wedge-shaped transport element is one of a) superhydrophilic when the first surface is hydrophobic, b) superhydrophilic when the first surface is superhydrophobic, and c) hydrophilic when the first surface is superhydrophobic.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: May 16, 2023
    Assignees: KIMBERLY-CLARK WORLDWIDE, INC., The Board of Trustees of the University of Illinois
    Inventors: Constantine Megaridis, Souvick Chatterjee, Ali Ibrahim, Pallab Sinha Mahapatra, Ranjan Ganguly, Lisha Yu, Richard N. Dodge
  • A METHOD AND DEVICE FOR MOVING AND DISTRIBUTING AQUEOUS LIQUIDS AT HIGH RATES ON POROUS, NONWOVEN SUBSTRATES
    Publication number: 20190344266
    Abstract: A material for manipulating liquid volumes includes a porous substrate having first and second surfaces; and a liquid-manipulating pattern disposed on the first surface, the pattern having a first reservoir connected to a target point via a first wedge-shaped transport element to enable liquid transport from the target point to the first reservoir regardless of gravity, wherein the first surface is one of hydrophobic or superhydrophobic, and wherein the first wedge-shaped transport element is one of superhydrophilic when the first surface is hydrophobic, superhydrophilic when the first surface is superhydrophobic, and hydrophilic when the first surface is superhydrophobic. The pattern can include a second reservoir connected to the target point via a second wedge-shaped transport element to enable liquid transport from the target point to the second reservoir regardless of gravity.
    Type: Application
    Filed: November 16, 2017
    Publication date: November 14, 2019
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Constantine Megaridis, Souvick Chatterjee, Uddalok Sen, Pallab Sinha Mahapatra, Ranjan Ganguly, Lisha Yu, Richard N. Dodge
  • WETTABILITY-PATTERNING METHOD AND DESIGNS FOR PUMPLESS TRANSPORT AND PRECISE MANIPULATION OF LIQUID VOLUMES ON AND THROUGH POROUS MATERIALS
    Publication number: 20190262825
    Abstract: A material for manipulating liquid includes a porous substrate having first and second surfaces; and a wedge-shaped transport element disposed on one of the first and second surfaces, wherein the wedge-shaped transport element has a narrow end and a wide end, the wide end connected to a first reservoir, wherein the wedge-shaped transport element is configured to pass liquid from the narrow end to the wide end to the first reservoir, regardless of gravity, and wherein the first reservoir is configured to pass liquid away from the substrate in a z-direction opposite from the surface on which a liquid is deposited. The surface on which the wedge-shaped transport element is disposed is one of hydrophobic or superhydrophobic, and the wedge-shaped transport element is one of a) superhydrophilic when the first surface is hydrophobic, b) superhydrophilic when the first surface is superhydrophobic, and c) hydrophilic when the first surface is superhydrophobic.
    Type: Application
    Filed: November 16, 2017
    Publication date: August 29, 2019
    Applicants: KIMBERLY-CLARK WORLDWIDE, INC., The Board of Trustees of the University of Illinois
    Inventors: Constantine Megaridis, Souvick Chatterjee, Ali Ibrahim, Pallab Sinha Mahapatra, Ranjan Ganguly, Lisha Yu, Richard N. Dodge