Patents by Inventor Chuck C. Xu

Chuck C. Xu 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).

  • Patent number: 7327925
    Abstract: A photosensitive composition suitable for practical waveguide devices is provided. The photosensitive composition comprises at least one multifunctional acrylate prepared from a fluorinated multifunctional alcohol and at least one photoinitiator. The said composition has high photo contrast, high curing speed, controllable refractive index, low curing shrinkage, high thermo-optic coefficient, low volatility and high viscosity. A waveguide device is formed by patterning the photosensitive composition.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: February 5, 2008
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Fang Wang, Baopei Xu, Indira S. Pottebaum, Chuck C. Xu, Deepti Pant, Chris E. Osuch, Louay A. Eldada
  • Patent number: 7078445
    Abstract: A photosensitive composition suitable for practical waveguide devices is provided. The photosensitive composition comprises at least one multifunctional acrylate prepared from a fluorinated multifunctional alcohol and at least one photoinitiator. The said composition has high photo contrast, high curing speed, controllable refractive index, low curing shrinkage, high thermo-optic coefficient, low volatility and high viscosity. A waveguide device is formed by patterning the photosensitive composition.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: July 18, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Chuck C. Xu, Deepti Pant, Chris E. Osuch, Louay A. Eldada
  • Patent number: 6929899
    Abstract: A photosensitive composition having low absorption loss at 1,300-1,610 nm and is suitable for practical waveguide devices. The composition comprises at least one (meth)acrylate prepared from a fluorinated monomer or polymer having minimum two hydroxyl groups, at least one multifunctional non-fluorinated (meth)acrylate and at least one photoinitiator. An optical coating on a variety of substrates is obtained by exposing the photosensitive composition to actinic radiation such as UV light. An optical waveguide device is fabricated by patterning the photosensitive composition on a substrate.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: August 16, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Indira S. Pottebaum, Chuck C. Xu, Chris E. Osuch, Deepti Pant, Louay A. Eldada
  • Publication number: 20040071386
    Abstract: This invention pertains to a novel design for an integrated optical communications device utilizing the thermo-optic effect to condition, manipulate, or alter an optical signal transmitted thereto.
    Type: Application
    Filed: April 9, 2003
    Publication date: April 15, 2004
    Inventors: Joris van Nunen, Alan D. Heaney, Chuck C. Xu, Deepti Pant, Louay Eldada
  • Patent number: 6689900
    Abstract: Fluorinated multifunctional alcohols containing at least 3 primary hydroxyl groups are disclosed. Such alcohols allow for easy synthesis of multifunctional crosslinkers such as acrylates, epoxies and vinyl ethers. The multifunctional crosslinkers are used in fluorinated optical coating and waveguide compositions to increase curing speed and crosslinking density.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: February 10, 2004
    Assignees: E. I. du Pont de Nemours and Company, Telephotonics Incorporated
    Inventors: Fang Wang, Baopei Xu, Indira S. Pottebaum, Chuck C. Xu
  • Publication number: 20020136526
    Abstract: A photosensitive composition having low absorption loss at 1,300-1,610 nm and is suitable for practical waveguide devices. The composition comprises at least one (meth)acrylate prepared from a fluorinated monomer or polymer having minimum two hydroxyl groups, at least one multifunctional non-fluorinated (meth)acrylate and at least one photoinitiator. An optical coating on a variety of substrates is obtained by exposing the photosensitive composition to actinic radiation such as UV light. An optical waveguide device is fabricated by patterning the photosensitive composition on a substrate.
    Type: Application
    Filed: January 18, 2002
    Publication date: September 26, 2002
    Inventors: Indira S. Pottebaum, Chuck C. Xu, Chris E. Osuch, Deepti Pant, Louay A. Eldada
  • Publication number: 20020115820
    Abstract: A class of fluorinated multifunctional alcohols and their derivatives such as acrylates, epoxies and vinyl ethers. The multifunctional alcohols were synthesized from a core molecule having at least three equivalents of hydroxy-reacting functional groups and a fluorinated molecule containing at least two hydroxyl groups.
    Type: Application
    Filed: January 18, 2002
    Publication date: August 22, 2002
    Inventors: Fang Wang, Chuck C. Xu, Baopei Xu, Indira S. Pottebaum
  • Publication number: 20020111518
    Abstract: Fluorinated multifunctional alcohols containing at least 3 primary hydroxyl groups are disclosed. Such alcohols allow for easy synthesis of multifunctional crosslinkers such as acrylates, epoxies and vinyl ethers. The multifunctional crosslinkers are used in fluorinated optical coating and waveguide compositions to increase curing speed and crosslinking density.
    Type: Application
    Filed: January 31, 2002
    Publication date: August 15, 2002
    Inventors: Fang Wang, Baopei Xu, Indira S. Pottebaum, Chuck C. Xu
  • Publication number: 20020106582
    Abstract: A photosensitive composition suitable for practical waveguide devices is provided. The photosensitive composition comprises at least one multifunctional acrylate prepared from a fluorinated multifunctional alcohol and at least one photoinitiator. The said composition has high photo contrast, high curing speed, controllable refractive index, low curing shrinkage, high thermo-optic coefficient, low volatility and high viscosity. A waveguide device is formed by patterning the photosensitive composition.
    Type: Application
    Filed: January 18, 2002
    Publication date: August 8, 2002
    Inventors: Chuck C. Xu, Deepti Pant, Chris E. Osuch, Louay A. Eldada