Patents by Inventor Joydev K. Laha

Joydev K. Laha 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).

  • SYNTHESIS OF CHLORINS AND PHORBINES WITH ENHANCED RED SPECTRAL FEATURES
    Publication number: 20120245508
    Abstract: The present invention provides compounds of the general Formula DI: along with methods of making such compounds, formulations containing the same, and methods of using the same (e.g., in photodynamic therapy, for the production of solar cells, etc.).
    Type: Application
    Filed: May 25, 2012
    Publication date: September 27, 2012
    Inventors: Jonathan S. Lindsey, Joydev K. Laha, Muthiah Chinnasamy, K. Eszter Borbas
  • Synthesis of chlorins and phorbines with enhanced red spectral features
    Patent number: 8207329
    Abstract: The present invention provides compounds of the general Formula DI: along with methods of making such compounds, formulations containing the same, and methods of using the same (e.g., in photodynamic therapy, for the production of solar cells, etc.).
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: June 26, 2012
    Assignee: North Carolina State University
    Inventors: Jonathan S. Lindsey, Joydev K. Laha, Muthiah Chinnasamy, K. Eszter Borbas
  • SYNTHESIS OF CHLORINS AND PHORBINES WITH ENHANCED RED SPECTRAL FEATURES
    Publication number: 20090227553
    Abstract: The present invention provides compounds of the general Formula DI: along with methods of making such compounds, formulations containing the same, and methods of using the same (e.g., in photodynamic therapy, for the production of solar cells, etc.
    Type: Application
    Filed: November 30, 2006
    Publication date: September 10, 2009
    Inventors: Jonathan S. Lindsey, Joydev K. Laha, Muthiah Chinnasamy, K. Eszter Borbas
  • Scalable synthesis of dipyrromethanes
    Patent number: 7022862
    Abstract: A (preferably nonaqueous) method of making a dipyrromethane is described.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: April 4, 2006
    Assignee: North Carolina State University
    Inventors: Jonathan S. Lindsey, Savithri Dhanalekshmi, Joydev K. Laha, Masahiko Taniguchi