Patents by Inventor CHUCHAWIN CHANGTONG

CHUCHAWIN CHANGTONG 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).

  • Porphyrin compounds comprising one or more pyridone moieties
    Patent number: 9115138
    Abstract: Various porphyrin compounds comprising one or more pyridone moieties, intermediates thereof, compositions thereof, and, methods of making and using thereof.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: August 25, 2015
    Inventors: John L. Lombardi, Chuchawin Changtong
  • PORPHYRIN COMPOUNDS COMPRISING ONE OR MORE PYRIDONE MOIETIES
    Publication number: 20130324714
    Abstract: Various porphyrin compounds comprising one or more pyridone moieties, intermediates thereof, compositions thereof, and, methods of making and using thereof.
    Type: Application
    Filed: May 21, 2013
    Publication date: December 5, 2013
    Inventors: John L. Lombardi, Chuchawin Changtong
  • Chemically-resistant coating composition
    Patent number: 8481446
    Abstract: A coating composition comprising a Photocatalyst Composition comprising a photocatalyst and a pendent silyl ester group, wherein the photocatalyst produces singlet oxygen in the presence of light and ambient air. In certain embodiments, the coating composition further comprises a singlet oxygen scavenger.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: July 9, 2013
    Inventors: John L. Lombardi, Chuchawin Changtong
  • Porphyrin compounds comprising one or more pyridone moieties
    Patent number: 8445683
    Abstract: Various porphyrin compounds comprising one or more pyridone moieties, intermediates thereof, compositions thereof, and, methods of making and using thereof.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: May 21, 2013
    Inventors: Robert E. Connors, Chuchawin Changtong, John L. Lombardi
  • PORPHYRIN COMPOUNDS COMPRISING ONE OR MORE PYRIDONE MOIETIES
    Publication number: 20120115901
    Abstract: Various porphyrin compounds comprising one or more pyridone moieties, intermediates thereof, compositions thereof, and, methods of making and using thereof.
    Type: Application
    Filed: October 3, 2008
    Publication date: May 10, 2012
    Inventors: ROBERT E. CONNORS, CHUCHAWIN CHANGTONG, JOHN L. LOMBARDI
  • CHEMICALLY-RESISTANT COATING COMPOSITION
    Publication number: 20100279850
    Abstract: A coating composition comprising a Photocatalyst Composition comprising a photocatalyst and a pendent silyl ester group, wherein the photocatalyst produces singlet oxygen in the presence of light and ambient air. In certain embodiments, the coating composition further comprises a singlet oxygen scavenger.
    Type: Application
    Filed: January 5, 2010
    Publication date: November 4, 2010
    Inventors: JOHN L. LOMBARDI, CHUCHAWIN CHANGTONG