Patents by Inventor Sheeja Bahulayan

Sheeja Bahulayan 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).

  • Phthalocyanine Compounds for Sensing Carbon Dioxide and Use
    Publication number: 20190072530
    Abstract: The invention relates to carbon dioxide sensing compounds. In particular, the present invention relates to said sensing compounds comprising a phathalocyanine or a metal phthalocyanine. Furthermore, the invention relates to the tuning sensitivity of the phathalocyanine or the metal phthalocyanine by incorporation of amine groups and spacers. The sensing layers can be integrated on various transducers like a chemiresistor, a capacitor, a field effect transistor (FET), an optical-based sensor, or a mass-based sensor.
    Type: Application
    Filed: March 2, 2016
    Publication date: March 7, 2019
    Inventors: Yan Yan, Anup Lohani, Suresh Palale, Sheeja Bahulayan, Hui Kheng Karen Goh, Felicia Fibiani Permatasari
  • Compounds with terminal heteroarylcyanovinylene groups and their use in organic solar cells
    Patent number: 9917260
    Abstract: The present invention relates to a photoactive material comprising a donor substance and an acceptor substance, wherein the donor substance comprises or consists of one or more compounds of formula (I) described herein, or the acceptor substance comprises or consists of one or more compounds of formula (I) described herein, or the donor substance comprises or consists of a first compound of formula (I) described herein and the acceptor substance comprises a second compound of formula (I) described herein with the proviso that the first and second compound are not the same, as well as to an organic solar cell comprising said photoactive material.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: March 13, 2018
    Assignee: BASF SE
    Inventors: Sudhakar Sundarraj, Christian Eickhoff, Sheeja Bahulayan, Robert Send, Yuichi Nishimae, Helmut Reichelt, Junichi Tanabe, Peter Erk
  • COMPOUNDS WITH TERMINAL HETEROARYLCYANOVINYLENE GROUPS AND THEIR USE IN ORGANIC SOLAR CELLS
    Publication number: 20160248021
    Abstract: The present invention relates to a photoactive material comprising a donor substance and an acceptor substance, wherein the donor substance comprises or consists of one or more compounds of formula (I) described herein, or the acceptor substance comprises or consists of one or more compounds of formula (I) described herein, or the donor substance comprises or consists of a first compound of formula (I) described herein and the acceptor substance comprises a second compound of formula (I) described herein with the proviso that the first and second compound are not the same, as well as to an organic solar cell comprising said photoactive material. The present invention also relates to a photoelectric conversion device comprising or consisting of two or more organic solar cells comprising said photoactive material and to compounds of formula (I) as described herein for use as donor substance or as acceptor substance in a photoactive material.
    Type: Application
    Filed: August 14, 2014
    Publication date: August 25, 2016
    Applicant: BASF SE
    Inventors: Sudhakar SUNDARRAJ, Christian EICKHOFF, Sheeja BAHULAYAN, Robert SEND, Yuichi NISHIMAE, Helmut REICHELT, Junichi TANABE, Peter ERK
  • Use of halogenated phthalocyanines
    Patent number: 8658290
    Abstract: The present invention relates to the use of halogenated phthalocyanines as charge transport materials and/or as absorber materials.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: February 25, 2014
    Assignees: BASF SE, The Board of Trustees of the Leland Stanford Junior University
    Inventors: Martin Koenemann, Sudhakar Sundarraj, Jae Hyung Hwang, Jan Schoeneboom, Albert Liu, Peter Peumans, Felix Eickemeyer, Ingmar Bruder, Neil Gregory Pschirer, Ruediger Sens, Gerd Weber, Sheeja Bahulayan, Peter Erk
  • USE OF PHTHALOCYANINE COMPOUNDS WITH ARYL OR HETARYL SUBSTITUENTS IN ORGANIC SOLAR CELLS
    Publication number: 20120068123
    Abstract: The present invention relates to organic solar cell comprising at least one photoactive region comprising an organic donor material in contact with an organic acceptor material and forming a donor-acceptor heterojunction, wherein the photoactive region comprises at least one compound of the formulae Ia and/or Ib where M, (Ra)m and (Rb)n as described in the claims and description. Furthermore, the present invention relates to compounds of formulae Ia and Ib, wherein M, (Ra)m and n are as described in the claims and description and Rb is fluorine and to a process for preparing them.
    Type: Application
    Filed: May 25, 2010
    Publication date: March 22, 2012
    Applicant: BASF SE
    Inventors: Sudhakar Sundarraj, Ingmar Bruder, Jae Hyung Hwang, Jan Schoeneboom, Martin Koenemann, Sheeja Bahulayan, Antti Ojala, Augustine Leow Yoon Wui, Peter Erk, Ruediger Sens, Thomas Gessner
  • USE OF HALOGENATED PHTHALOCYANINES
    Publication number: 20100207114
    Abstract: The present invention relates to the use of halogenated phthalocyanines as charge transport materials and/or as absorber materials.
    Type: Application
    Filed: October 31, 2008
    Publication date: August 19, 2010
    Applicants: BASF SE, THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Martin Koenemann, Sudhakar Sundarraj, Jae Hyung Hwang, Jan Schoeneboom, Albert Liu, Peter Peumans, Felix Eickemeyer, Ingmar Bruder, Neil Gregory Pschirer, Ruediger Sens, Gerd Weber, Sheeja Bahulayan, Peter Erk