Patents by Inventor H. Z. Syeda Huma

H. Z. Syeda Huma 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).

  • Boron complexation strategy for use in manipulating 1-acyldipyrromethanes
    Patent number: 7595407
    Abstract: A method of making a metal complex comprises combining a 1-monoacyldipyrromethane with a compound of the formula R1R2MX, wherein M is boron, R1 and R2 are each independently organic substituents; and X is an anion leaving group; to produce a metal complex of the formula DMR1R2 wherein DH is a 1-monoacyldipyrromethane. The methods and complexes are useful for the purification and synthesis of dipyrromethanes and porphyrins.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: September 29, 2009
    Assignee: North Carolina State University
    Inventors: Jonathan S. Lindsey, Kannan Muthukumaran, Marcin Ptaszek, H. Z. Syeda Huma
  • Boron complexation strategy for use in manipulating 1-acyldipyrromethanes
    Patent number: 7423160
    Abstract: A method of making a metal complex comprises combining a 1-monoacyldipyrromethane with a compound of the formula R1R2MX, wherein M is boron, R1 and R2 are each independently organic substituents; and X is an anion leaving group; to produce a metal complex of the formula DMR1R2 wherein DH is a 1-monoacyldipyrromethane. The methods and complexes are useful for the purification and synthesis of dipyrromethanes and porphyrins.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: September 9, 2008
    Assignee: North Carolina State University
    Inventors: Jonathan S. Lindsey, Kannan Muthukumaran, Marcin Ptaszek, H. Z. Syeda Huma
  • Boron complexation strategy for use in manipulating 1-acyldipyrromethanes
    Patent number: 7317108
    Abstract: A method of making a metal complex comprises combining a 1-monoacyldipyrromethane with a compound of the formula R1R2MX, wherein M is boron, R1 and R2 are each independently organic substituents; and X is an anion leaving group; to produce a metal complex of the formula DMR1R2 wherein DH is a 1-monoacyldipyrromethane. The methods and complexes are useful for the purification and synthesis of dipyrromethanes and porphyrins.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: January 8, 2008
    Assignee: North Carolina State University
    Inventors: Jonathan S. Lindsey, Kannan Muthukumaran, Marcin Ptaszek, H. Z. Syeda Huma
  • Boron complexation strategy for use in manipulating 1-acyldipyrromethanes
    Patent number: 7282582
    Abstract: A method of making a metal complex comprises combining a 1-monoacyldipyrromethane with a compound of the formula R1R2MX, wherein M is boron, R1 and R2 are each independently organic substituents; and X is an anion leaving group; to produce a metal complex of the formula DMR1R2 wherein DH is a 1-monoacyldipyrromethane. The methods and complexes are useful for the purification and synthesis of dipyrromethanes and porphyrins.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: October 16, 2007
    Assignee: North Carolina State University
    Inventors: Jonathan S. Lindsey, Kannan Muthukumaran, Marcin Ptaszek, H. Z. Syeda Huma
  • Boron complexation strategy for use in manipulating 1-acyldipyrromethanes
    Patent number: 7153975
    Abstract: A method of making a metal complex comprises combining a 1-monoacyldipyrromethane with a compound of the formula R1R2MX, wherein M is boron, R1 and R2 are each independently organic substituents; and X is an anion leaving group; to produce a metal complex of the formula DMR1R2 wherein DH is a 1-monoacyldipyrromethane. The methods and complexes are useful for the purification and synthesis of dipyrromethanes and porphyrins.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: December 26, 2006
    Assignee: North Carolina State University
    Inventors: Jonathan S. Lindsey, Kannan Muthukumaran, Marcin Ptaszek, H. Z. Syeda Huma