Patents by Inventor Robert Blomquist

Robert Blomquist 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: 9477152
    Abstract: The present invention relates to a photosensitive printing form precursor and a method for forming a printing form from the precursor. The precursor includes a support and a layer of a photosensitive composition adjacent the support, in which at least one indicia is disposed between the support and the photosensitive layer. The indicia identifies the precursor, is retained throughout a multi-step process to convert the precursor into a printing form and in the end-use of the printing form.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: October 25, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Robert Blomquist, Violeta Lungu, Adrian Lungu, Rajgopal Subramanian
  • Publication number: 20140087306
    Abstract: The present invention relates to a photosensitive printing form precursor and a method for forming a printing form from the precursor. The precursor includes a support and a layer of a photosensitive composition adjacent the support, in which at least one indicia is disposed between the support and the photosensitive layer. The indicia identifies the precursor, is retained throughout a multi-step process to convert the precursor into a printing form and in the end-use of the printing form.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 27, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Robert Blomquist, Violeta Lungu, Adrian Lungu, Rajgopal Subramanian
  • Publication number: 20090295041
    Abstract: The invention pertains to a printing form precursor and a method for preparing a stamp from the precursor for use in soft lithographic applications. The printing form precursor includes a composition layer of a fluorinated compound capable of polymerization upon exposure to actinic radiation and a flexible support transparent to the actinic radiation adjacent the composition layer.
    Type: Application
    Filed: July 31, 2009
    Publication date: December 3, 2009
    Applicant: E.I.DU PONT DE NEMOURS AND COMPANY
    Inventors: MARIA PETRUCCI-SAMIJA, Graciela Beatriz Blanchet, Robert Blomquist, Hee Hyun Lee
  • Publication number: 20080000373
    Abstract: The invention pertains to a printing form precursor and a method for preparing a stamp from the precursor for use in soft lithographic applications. The printing form precursor includes a composition layer of a fluorinated compound capable of polymerization upon exposure to actinic radiation and a flexible support transparent to the actinic radiation adjacent the composition layer.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 3, 2008
    Inventors: Maria Petrucci-Samija, Graciela Beatriz Blanchet, Robert Blomquist, Hee Hyun Lee
  • Patent number: 7030209
    Abstract: The present invention provides an energy curable composition including a compound having an aromatic or heteroaromatic moiety; at least two fluorinated alkylene, arylene or polyether moieties, each fluorinated alkylene, arylene or polyether moiety being linked to the aromatic or heteroaromatic moiety through an ether or thioether; and at least one ethylenically unsaturated moiety, each ethylenically unsaturated moiety being linked to one of the fluorinated alkylene, arylene or polyether moieties. The present invention also provides an energy curable composition including a compound having an isocyanurate moiety, three fluorinated alkylene, arylene, or polyether moieties linked to the isocyanurate moiety at the nitrogens of the isocyanurate, and at least one ethylenically unsaturated moiety linked to one of the fluorinated alkylene, arylene, or polyether moieties. The present invention further provides polymeric materials and optical devices made using these compositions.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: April 18, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Blomquist, Jian Ming S. Deng
  • Patent number: 6943232
    Abstract: The present invention provides an energy curable composition including a compound having an aromatic or heteroaromatic moiety; at least two fluorinated alkylene, arylene or polyether moieties, each fluorinated alkylene, arylene or polyether moiety being linked to the aromatic or heteroaromatic moiety through an —O— or —S— linkage; and at least one ethylenically unsaturated moiety, each ethylenically unsaturated moiety being linked to one of the fluorinated alkylene, arylene or polyether moieties. The present invention also provides an energy curable composition including a compound having an isocyanurate moiety, three fluorinated alkylene, arylene, or polyether moieties linked to the isocyanurate moiety at the nitrogens of the isocyanurate, and at least one ethylenically unsaturated moiety linked to one of the fluorinated alkylene, arylene, or polyether moieties. The present invention further provides polymeric materials and optical devices made using these compositions.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: September 13, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Blomquist, Jian Ming S. Deng
  • Publication number: 20040209202
    Abstract: Vinyl ether compounds having the formula: R—O—X—O—CH═CH2 wherein R is a radical selected from R1—CnHm—C(═O)—, R1—CnHm—CH[—O—X—O—CH═CH2—], R1—CnHm—CH['O—X—O—CH═CH2—]C(═O)—, R1—CnHm—CH[—C(═O)—O—X—O—CH═CH2—], R1—CnHm—CH[—C(═O)—O—X—O—CH═CH2—]C(═O)—, R1—[CFCl—CF2—]pCH2— and HCFCl—CF2—, wherein R1 is an unsubstituted or substituted fluorinated aliphatic radical, an unsubstituted or substituted fluorinated cyclic aliphatic radical, an unsubstituted or substituted fluorinated aromatic radical, an unsubstituted or substituted fluorinated araliphatic radical, or an unsubstituted or substituted fluorinated heterocyclic radical; n is an integer between 1 and 6, in
    Type: Application
    Filed: May 11, 2004
    Publication date: October 21, 2004
    Applicant: Honeywell International Inc.
    Inventors: David Nalewajek, David Bradley, John Schabel, Robert Blomquist
  • Patent number: 6800424
    Abstract: The invention provides organic optical waveguide devices which employ perfluoropolymeric materials having low optical loss and low birefringence. An optical element has a substrate; a patterned, light transmissive perfluoropolymer core composition; and a light reflecting cladding composition on the pattern of the core. Writing of high-efficiency waveguide gratings is also disclosed.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: October 5, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Baopei Xu, Louay Eldada, Robert A. Norwood, Robert Blomquist
  • Patent number: 6768839
    Abstract: Provided are polymeric or polymeric and glass optical fiber devices which have a tunable wavelength response in a polymeric fiber Bragg grating. An optical fiber is formed having a tubular cladding of a first polymeric or glass composition having a first index of refraction, wherein the cladding has a longitudinal axis. A core of a second polymeric composition is within the cladding and extends along and around the longitudinal axis. The second polymeric composition has a second index of refraction which is greater than the index of refraction of the first polymeric composition. A Bragg grating having a plurality of spaced grating elements is formed in the core. The arrangement then has a means, such as a heater, for changing the spacing between the grating elements.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: July 27, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Blomquist, Robert Norwood
  • Patent number: 6728445
    Abstract: A wavelength selective optical device for locking to a selected wavelength in an ITU grid includes a first waveguide, a second waveguide, a heating element and a control unit. The first waveguide includes a tunable filter formed in the first waveguide and the second waveguide includes a reference filter formed in the second waveguide. The heating element is in thermal contact with the tunable filter and the reference filter and the control unit is coupled to the heating element and the reference filter. The control unit varies a temperature of the heating element responsive to an indication signal provided by the reference filter to adjust the selected channel of the tunable filter.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: April 27, 2004
    Assignee: E. I. du Ponte de Nemours and Company
    Inventors: Robert Blomquist, George Boudoughian, Louay Eldada, Michael J. McFarland, Lawrence W. Shacklette
  • Patent number: 6711336
    Abstract: A fluorinated polymerizable compound useful for fabricating planar optical devices includes at least one fluorinated alkylene or alkylene ether moiety and at least two terminal acrylate moieties, each terminal acrylate moiety being connected to one of the fluorinated alkylene or fluorinated alklene ether moieties by an ester linking group. The fluorinated polymerizable compounds, or macromers, of this invention are useful for forming optical components exhibiting a refractive index comparable to that of glass fiber waveguides, while also exhibiting very low absorption losses. Polymerizable compositions suitable for preparing optical components can be prepared by combining the macromers of the invention with a photoinitiator. Conventional optical monomers may also be employed, if desired.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: March 23, 2004
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Robert Blomquist, Jian Ming S. Deng, Lawrence W. Shacklette, MacRae Maxfield
  • Publication number: 20030223687
    Abstract: A wavelength selective optical device for locking to a selected wavelength in an ITU grid includes a first waveguide, a second waveguide, a heating element and a control unit. The first waveguide includes a tunable filter formed in the first waveguide and the second waveguide includes a reference filter formed in the second waveguide. The heating element is in thermal contact with the tunable filter and the reference filter and the control unit is coupled to the heating element and the reference filter. The control unit varies a temperature of the heating element responsive to an indication signal provided by the reference filter to adjust the selected channel of the tunable filter.
    Type: Application
    Filed: May 30, 2002
    Publication date: December 4, 2003
    Inventors: Robert Blomquist, George Boudoughian, Louay Eldada, Michael J. McFarland, Lawrence W. Shacklette
  • Publication number: 20030207215
    Abstract: The invention provides organic optical waveguide devices which employ perfluoropolymeric materials having low optical loss and low birefringence. An optical element has a substrate; a patterned, light transmissive perfluoropolymer core composition; and a light reflecting cladding composition on the pattern of the core. Writing of high-efficiency waveguide gratings is also disclosed.
    Type: Application
    Filed: January 8, 2003
    Publication date: November 6, 2003
    Inventors: Baopei Xu, Louay Eldada, Robert A. Norwood, Robert Blomquist
  • Publication number: 20030181633
    Abstract: The present invention provides an energy curable composition including a compound having an aromatic or heteroaromatic moiety; at least two fluorinated alkylene, arylene or polyether moieties, each fluorinated alkylene, arylene or polyether moiety being linked to the aromatic or heteroaromatic moiety through an —O— or —S— linkage; and at least one ethylenically unsaturated moiety, each ethylenically unsaturated moiety being linked to one of the fluorinated alkylene, arylene or polyether moieties. The present invention also provides an energy curable composition including a compound having an isocyanurate moiety, three fluorinated alkylene, arylene, or polyether moieties linked to the isocyanurate moiety at the nitrogens of the isocyanurate, and at least one ethylenically unsaturated moiety linked to one of the fluorinated alkylene, arylene, or polyether moieties. The present invention further provides polymeric materials and optical devices made using these compositions.
    Type: Application
    Filed: September 23, 2002
    Publication date: September 25, 2003
    Inventors: Robert Blomquist, Jian Ming S. Deng
  • Publication number: 20030176629
    Abstract: The present invention provides an energy curable composition including a compound having an aromatic or heteroaromatic moiety; at least two fluorinated alkylene, arylene or polyether moieties, each fluorinated alkylene, arylene or polyether moiety being linked to the aromatic or heteroaromatic moiety through an ether or thioether; and at least one ethylenically unsaturated moiety, each ethylenically unsaturated moiety being linked to one of the fluorinated alkylene, arylene or polyether moieties. The present invention also provides an energy curable composition including a compound having an isocyanurate moiety, three fluorinated alkylene, arylene, or polyether moieties linked to the isocyanurate moiety at the nitrogens of the isocyanurate, and at least one ethylenically unsaturated moiety linked to one of the fluorinated alkylene, arylene, or polyether moieties. The present invention further provides polymeric materials and optical devices made using these compositions.
    Type: Application
    Filed: February 4, 2002
    Publication date: September 18, 2003
    Inventors: Robert Blomquist, Jian Ming S. Deng
  • Publication number: 20030108326
    Abstract: A fluorinated polymerizable compound useful for fabricating planar optical devices includes at least one fluorinated alkylene or alkylene ether moiety and at least two terminal acrylate moieties, each terminal acrylate moiety being connected to one of the fluorinated alkylene or fluorinated alklene ether moieties by an ester linking group. The fluorinated polymerizable compounds, or macromers, of this invention are useful for forming optical components exhibiting a refractive index comparable to that of glass fiber waveguides, while also exhibiting very low absorption losses. Polymerizable compositions suitable for preparing optical components can be prepared by combining the macromers of the invention with a photoinitiator. Conventional optical monomers may also be employed, if desired.
    Type: Application
    Filed: October 29, 2002
    Publication date: June 12, 2003
    Inventors: Robert Blomquist, Jian Ming S. Deng, Lawrence W. Shacklette, MacRae Maxfield
  • Patent number: 6555288
    Abstract: The invention provides organic optical waveguide devices which employ perfluoropolymeric materials having low optical loss and low birefringence. An optical element has a substrate; a patterned, light transmissive perfluoropolymer core composition; and a light reflecting cladding composition on the pattern of the core. Writing of high-efficiency waveguide gratings is also disclosed.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: April 29, 2003
    Assignee: Corning Incorporated
    Inventors: Baopei Xu, Louay Eidada, Robert A. Norwood, Robert Blomquist
  • Publication number: 20030053774
    Abstract: Provided are polymeric or polymeric and glass optical fiber devices which have a tunable wavelength response in a polymeric fiber Bragg grating. An optical fiber is formed having a tubular cladding of a first polymeric or glass composition having a first index of refraction, wherein the cladding has a longitudinal axis. A core of a second polymeric composition is within the cladding and extends along and around the longitudinal axis. The second polymeric composition has a second index of refraction which is greater than the index of refraction of the first polymeric composition. A Bragg grating having a plurality of spaced grating elements is formed in the core. The arrangement then has a means, such as a heater, for changing the spacing between the grating elements.
    Type: Application
    Filed: September 14, 2001
    Publication date: March 20, 2003
    Inventors: Robert Blomquist, Robert Norwood
  • Patent number: 6496637
    Abstract: A fluorinated polymerizable compound useful for fabricating planar optical devices includes at least one fluorinated alkylene or alkylene ether moiety and at least two terminal acrylate moieties, each terminal acrylate moiety being connected to one of the fluorinated alkylene or fluorinated alklene ether moieties by an ester linking group. The fluorinated polymerizable compounds, or macromers, of this invention are useful for forming optical components exhibiting a refractive index comparable to that of glass fiber waveguides, while also exhibiting very low absorption losses. Polymerizable compositions suitable for preparing optical components can be prepared by combining the macromers of the invention with a photoinitiator. Conventional optical monomers may also be employed, if desired.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: December 17, 2002
    Assignee: Corning Incorporated
    Inventors: Robert Blomquist, Jian Ming S. Deng, Lawrence W. Shacklette, MacRae Maxfield
  • Publication number: 20020122647
    Abstract: A fluorinated polymerizable compound useful for fabricating planar optical devices includes at least one fluorinated alkylene or alkylene ether moiety and at least two terminal acrylate moieties, each terminal acrylate moiety being connected to one of the fluorinated alkylene or fluorinated alklene ether moieties by an ester linking group. The fluorinated polymerizable compounds, or macromers, of this invention are useful for forming optical components exhibiting a refractive index comparable to that of glass fiber waveguides, while also exhibiting very low absorption losses. Polymerizable compositions suitable for preparing optical components can be prepared by combining the macromers of the invention with a photoinitiator. Conventional optical monomers may also be employed, if desired.
    Type: Application
    Filed: December 21, 2000
    Publication date: September 5, 2002
    Inventors: Robert Blomquist, Jian Ming S. Deng, Lawrence W. Schacklette, MacRae Maxfield