Patents by Inventor Prathapan Sreedharan

Prathapan Sreedharan 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).

  • METHODS AND INTERMEDIATES FOR THE SYNTHESIS OF DIPYRRIN-SUBSTITUTED PORPHYRINIC MACROCYCLES
    Publication number: 20120126214
    Abstract: The present invention provides dipyrrin substituted porphyrinic macrocycles, intermediates useful for making the same, and methods of making the same. Such compounds may be used for purposes including the making of molecular memory devices, solar cells and light harvesting arrays.
    Type: Application
    Filed: January 27, 2012
    Publication date: May 24, 2012
    Inventors: Lianhe Yu, Kannan Muthukumaran, Prathapan Sreedharan, Jonathan S. Lindsey
  • Methods and intermediates for the synthesis of dipyrrin-substituted porphyrinic macrocycles
    Patent number: 8129520
    Abstract: The present invention provides dipyrrin substituted porphyrinic macrocycles, intermediates useful for making the same, and methods of making the same. Such compounds may be used for purposes including the making of molecular memory devices, solar cells and light harvesting arrays.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: March 6, 2012
    Assignee: North Carolina State University
    Inventors: Lianhe Yu, Kannan Muthukumaran, Prathapan Sreedharan, Jonathan S. Lindsey
  • METHODS AND INTERMEDIATES FOR THE SYNTHESIS OF DIPYRRIN-SUBSTITUTED PORPHYRINIC MACROCYCLES
    Publication number: 20110197969
    Abstract: The present invention provides dipyrrin substituted porphyrinic macrocycles, intermediates useful for making the same, and methods of making the same. Such compounds may be used for purposes including the making of molecular memory devices, solar cells and light harvesting arrays.
    Type: Application
    Filed: April 14, 2011
    Publication date: August 18, 2011
    Inventors: Lianhe Yu, Kannan Muthukumaran, Prathapan Sreedharan, Jonathan S. Lindsey
  • Methods and intermediates for the synthesis of dipyrrin-substituted porphyrinic macrocycles
    Patent number: 7947828
    Abstract: The present invention provides dipyrrin substituted porphyrinic macrocycles, intermediates useful for making the same, and methods of making the same. Such compounds may be used for purposes including the making of molecular memory devices, solar cells and light harvesting arrays.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: May 24, 2011
    Assignee: North Carolina State University
    Inventors: Lianhe Yu, Kannan Muthukumaran, Prathapan Sreedharan, Jonathan S. Lindsey
  • METHODS AND INTERMEDIATES FOR THE SYNTHESIS OF DIPYRRIN-SUBSTITUTED PORPHYRINIC MACROCYCLES
    Publication number: 20100200066
    Abstract: The present invention provides dipyrrin substituted porphyrinic macrocycles, intermediates useful for making the same, and methods of making the same. Such compounds may be used for purposes including the making of molecular memory devices, solar cells and light harvesting arrays.
    Type: Application
    Filed: April 8, 2010
    Publication date: August 12, 2010
    Inventors: Lianhe Yu, Kannan Muthukumaran, Prathapan Sreedharan, Jonathan S. Lindsey
  • Methods and intermediates for the synthesis of dipyrrin-substituted porphyrinic macrocycles
    Patent number: 7723513
    Abstract: The present invention provides dipyrrin substituted porphyrinic macrocycles, intermediates useful for making the same, and methods of making the same. Such compounds may be used for purposes including the making of molecular memory devices, solar cells and light harvesting arrays.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: May 25, 2010
    Assignee: North Carolina State University
    Inventors: Lianhe Yu, Kannan Muthukumaran, Prathapan Sreedharan, Jonathan S. Lindsey
  • Methods and intermediates for the synthesis of dipyrrin-substituted porphyrinic macrocycles
    Patent number: 7332599
    Abstract: The present invention provides dipyrrin substituted porphyrinic macrocycles, intermediates useful for making the same, and methods of making the same. Such compounds may be used for purposes including the making of molecular memory devices, solar cells and light harvesting arrays.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: February 19, 2008
    Assignee: North Carolina State University
    Inventors: Lianhe Yu, Kannan Muthukumaran, Prathapan Sreedharan, Jonathan S. Lindsey
  • METHODS AND INTERMEDIATES FOR THE SYNTHESIS OF DIPYRRIN-SUBSTITUTED PORPHYRINIC MACROCYCLES
    Publication number: 20070191600
    Abstract: The present invention provides dipyrrin substituted porphyrinic macrocycles, intermediates useful for making the same, and methods of making the same. Such compounds may be used for purposes including the making of molecular memory devices, solar cells and light harvesting arrays.
    Type: Application
    Filed: April 20, 2007
    Publication date: August 16, 2007
    Applicant: North Carolina State University
    Inventors: Lianhe Yu, Kannan Muthukumaran, Prathapan Sreedharan, Jonathan Lindsey
  • Methods and intermediates for the synthesis of dipyrrin-substituted porphyrinic macrocycles
    Publication number: 20040254383
    Abstract: The present invention provides dipyrrin substituted porphyrinic macrocycles, intermediates useful for making the same, and methods of making the same. Such compounds may be used for purposes including the making of molecular memory devices, solar cells and light harvesting arrays.
    Type: Application
    Filed: June 6, 2003
    Publication date: December 16, 2004
    Inventors: Lianhe Yu, Kannan Muthukumaran, Prathapan Sreedharan, Jonathan S. Lindsey