Patents by Inventor Jack Bradford

Jack Bradford 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: 10358600
    Abstract: A polymerizable LC material comprising at least one di- or multireactive mesogenic compound selected from the group of compounds of formula I, at least one monoreactive mesogenic compound selected from the group of compounds of formula II, wherein the parameter A11 to A21, L21, p, P11 to P22, R21, Sp11 to Sp21, X11 to X21, and Z11 to Z21 have one of the meanings as given in claim 1, and at least one carbazole oxime ester photoinitiator. Furthermore, a method for preparation of the polymerizable LC material, a polymer film with improved thermal durability obtainable from the corresponding polymerizable LC material, a method of preparation of such polymer film, and the use of such polymer film and said polymerizable LC material for optical, electro-optical, decorative or security devices.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: July 23, 2019
    Assignee: Merck Patent GmbH
    Inventors: Stephen Mulcahy, Iain Gardiner, Jack Bradford, Eduardo Beltran Gracia, Graham Smith
  • Patent number: 10100253
    Abstract: The invention relates to a method of preparing a polymer film and to the use of such polymer film as in liquid crystal displays (LCDs) or other optical or electrooptical devices, for decorative or security applications, as alignment layer or optical retardation film.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: October 16, 2018
    Assignee: Merck Patent GmbH
    Inventors: Iain Gardiner, Owain Llyr Parri, Tara Perrett, Joseph Sargent, Jack Bradford, Sarah Whitehouse
  • Publication number: 20180195004
    Abstract: The invention relates to compounds of formula I, (R11O)sSi(CH3)3-s-Sp11-NR12-Sp12-C(OR13)tH3-t ??I wherein the parameter are defined in claim 1, a method for their preparation, to the use of compounds of formula I as adhesion promotors in polymerisable liquid crystal (LC) material, to a polymer film comprising a polymerised material with improved adhesion to a substrate, to methods for preparing such a polymer film, to a corresponding polymerisable LC material used for the preparation of such a polymer film, and to the use of the polymer film and said polymerisable LC material for optical, electrooptical, decorative or security uses and devices.
    Type: Application
    Filed: June 6, 2016
    Publication date: July 12, 2018
    Applicant: Merck Patent GmbH
    Inventors: Kevin ADLEM, Iain GARDINER, Jack BRADFORD, Stephen MULCAHY, James ALLEN
  • Publication number: 20170335192
    Abstract: A polymerisable LC material comprising at least one di- or multireactive mesogenic compound selected from the group of compounds of formula I, at least one monoreactive mesogenic compound selected from the group of compounds of formula II, wherein the parameter A11 to A21, L21, p, P11 to P22, R21, Sp11 to Sp21, X11 to X21, and Z11 to Z21 have one of the meanings as given in claim 1, and at least one carbazole oxime ester photoinitiator. Furthermore, a method for preparation of the polymerisable LC material, a polymer film with improved thermal durability obtainable from the corresponding polymerisable LC material, a method of preparation of such polymer film, and the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.
    Type: Application
    Filed: May 16, 2017
    Publication date: November 23, 2017
    Applicant: Merck Patent GmbH
    Inventors: Stephen MULCAHY, Iain GARDINER, Jack BRADFORD, Eduardo BELTRAN GRACIA, Graham SMITH
  • Publication number: 20150166892
    Abstract: The invention relates to a method of preparing a polymer film and to the use of such polymer film as in liquid crystal displays (LCDs) or other optical or electrooptical devices, for decorative or security applications, as alignment layer or optical retardation film.
    Type: Application
    Filed: May 24, 2013
    Publication date: June 18, 2015
    Applicant: Merck Patent GmbH
    Inventors: Iain Gardiner, Owain Llyr Parri, Tara Perrett, Joseph Sargent, Jack Bradford, Sarah Whitehouse
  • Publication number: 20130239465
    Abstract: The cold flow of middle distillate fuels may be improved by adding an effective improving amount of one or more alpha-olefin compositions. The compositions include, but are not necessarily limited to, polymers of alpha-olefins per se, copolymerized or grafted alpha-olefins with maleic anhydride, acrylic acid, vinyl acetate, alkyl acrylates, methacrylic acid, and/or alkyl methacrylates. These resulting copolymers or grafted polymers may be blended with alkylphenol-formaldehyde resins, which in turn may be blended with ethylene-vinyl acetate (EVA) copolymer. In a non-limiting example, the cold filter plugging point (CFPP) may be synergistically improved as compared with the expected additive effect of using the components separately.
    Type: Application
    Filed: March 6, 2013
    Publication date: September 19, 2013
    Applicant: Baker Hughes Incorporated
    Inventors: Ben Morgan, John A. Schield, Paul J. Biggerstaff, Kimchi T. Phan, Jack Bradford Ward
  • Publication number: 20110319520
    Abstract: Fine particulate polymer drag reducing agents (DRAs) in bi-modal or multi-modal particle size distributions may be produced simply and efficiently without cryogenic temperatures. The grinding or pulverizing of polymer, e.g. non-porous poly(alpha-olefin) suitable for reducing drag in hydrocarbons may be achieved by the use of at least one liquid grinding aid and at least two grinding processors in series. The blades of the stators of the grinders are of different configuration so that granulated polymer fed to the first processor having relatively larger gaps between blades is ground to an intermediate size which is fed to the second processor having relatively smaller gaps between blades which grinds the polymer to a second, smaller size. A non-limiting example of a suitable liquid grinding aid includes a blend of propylene glycol, water and hexanol. Particulate DRA may be produced at a size of 300 microns or less in only two passes.
    Type: Application
    Filed: July 14, 2011
    Publication date: December 29, 2011
    Applicant: Baker Hughes Incorporated
    Inventors: Thomas Mathew, Nagesh S. Kommareddi, Jack Bradford Ward
  • Patent number: 4384612
    Abstract: Control apparatus for preventing inadvertent operation of the drawworks of a drilling rig upon closure of an associated blowout preventer, the drawworks being at least partially operated by air from an air source connected thereto by an air conduit. The control apparatus may comprise control components for connection to the air conduit and movable from a first mode, in which air is permitted to communicate with the drawworks through the air conduit, and a second mode, in which air is prevented from communicating with the drawworks. Also included are monitor components for connection to the blowout preventer and the control components for sensing whether the blowout preventer is in opened or closed positions and initiating movement of the control components to the second mode upon movement of the blowout preventer to the closed position.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: May 24, 1983
    Assignee: Canamco, Inc.
    Inventors: Jack Bradford, William S. Manuel