Patents by Inventor David Huw Davies

David Huw Davies 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: 10270352
    Abstract: A switching circuit, electrical energy converter, power management unit and energy harvesting system are described. Such apparatus is applicable to energy harvesting applications which involve a variety of transducers, either singly or simultaneously. The transducers may, for example, be photovoltaic, thermoelectric, piezoelectric, or electrodynamic. The described converters operate to convert impedances, voltages and currents. They incorporate inductive energy transfer elements, which are magnetically coupled. Different combinations of these energy transfer elements are used to obtain different conversion ratios, which can be referred to as “gears”. On the input side, having multiple gears enables easier and better matching to a wider variety of energy transducers. On the output side, it enables easier and better accommodation of a wider spread of energy storage voltages and of a wider variety of loads.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: April 23, 2019
    Assignee: Trameto Limited
    Inventors: Laurence Alan Strong, David Huw Davies, Christopher Julian Travis
  • Patent number: 10174311
    Abstract: Contemplated compositions, devices, and methods comprise immunodominant antigens from selected human pathogens (Burkholderia pseudomallei, Borrelia burgdorferi, Brucella melitensis, Chlamydia muridarum, Coxiella burnetii, Francisella tularensis, human Herpes virus 1 and 2, Mycobacterium tuberculosis, Plasmodium falciparum, and Vaccinia virus) can be used as a vaccine, as diagnostic markers, and as therapeutic agents. In particularly preferred aspects, the antigens have quantified and known relative reactivities with respect to sera of a population infected with the pathogen, and have a known association with a disease parameter.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: January 8, 2019
    Assignee: Immport Therapeutics, Inc.
    Inventors: Philip Felgner, David Huw Davies, Xiaowu Liang
  • Publication number: 20180069481
    Abstract: A switching circuit, electrical energy converter, power management unit and energy harvesting system are described. Such apparatus is applicable to energy harvesting applications which involve a variety of transducers, either singly or simultaneously. The transducers may, for example, be photovoltaic, thermoelectric, piezoelectric, or electrodynamic. The described converters operate to convert impedances, voltages and currents. They incorporate inductive energy transfer elements, which are magnetically coupled. Different combinations of these energy transfer elements are used to obtain different conversion ratios, which can be referred to as “gears”. On the input side, having multiple gears enables easier and better matching to a wider variety of energy transducers. On the output side, it enables easier and better accommodation of a wider spread of energy storage voltages and of a wider variety of loads.
    Type: Application
    Filed: September 4, 2017
    Publication date: March 8, 2018
    Inventors: Laurence Alan Strong, David Huw Davies, Christopher Julian Travis
  • Publication number: 20170081659
    Abstract: Contemplated compositions, devices, and methods comprise immunodominant antigens from selected human pathogens (Burkholderia pseudomallei, Borrelia burgdorferi, Brucella melitensis, Chlamydia muridarum, Coxiella burnetii, Francisella tularensis, human Herpes virus 1 and 2, Mycobacterium tuberculosis, Plasmodium falciparum, and Vaccinia virus) can be used as a vaccine, as diagnostic markers, and as therapeutic agents. In particularly preferred aspects, the antigens have quantified and known relative reactivities with respect to sera of a population infected with the pathogen, and have a known association with a disease parameter.
    Type: Application
    Filed: October 4, 2016
    Publication date: March 23, 2017
    Inventors: Philip Felgner, David Huw Davies, Xiaowu Liang
  • Publication number: 20160158344
    Abstract: Contemplated compositions, devices, and methods are drawn to various antigens from Herpes Simplex Virus type 1 (HSV-1) and Herpes Simplex Virus type 2 (HSV-2) and their use in vaccines, therapeutic agents, and various diagnostic tests. In particularly preferred aspects, the antigens are immunodominant and have quantified and known relative reactivities with respect to sera of a population infected with the pathogen, and/or have a known association with a disease parameter.
    Type: Application
    Filed: February 9, 2016
    Publication date: June 9, 2016
    Inventors: David Huw Davies, Xiaowu Liang, Philip Felgner
  • Patent number: 9297803
    Abstract: Contemplated compositions, devices, and methods comprise immunodominant antigens from selected human pathogens (Burkholderia pseudomallei, Borrelia burgdorferi, Brucella melitensis, Chlamydia muridarum, Coxiella burnetii, Francisella tularensis, human Herpes virus 1 and 2, Mycobacterium tuberculosis, Plasmodium falciparum, and Vaccinia virus) can be used as a vaccine, as diagnostic markers, and as therapeutic agents. In particularly preferred aspects, the antigens have quantified and known relative reactivities with respect to sera of a population infected with the pathogen, and have a known association with a disease parameter.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: March 29, 2016
    Assignees: Immport Therapeutics, Inc., Rutgers, The State University of New Jersey
    Inventors: Philip Felgner, David Huw Davies, Xiaowu Liang, Maria Laura Gennaro
  • Publication number: 20150056241
    Abstract: Contemplated compositions, devices, and methods comprise immunodominant antigens from selected human pathogens (Burkholderia pseudomallei, Borrelia burgdorferi, Brucella melitensis, Chlamydia muridarum, Coxiella burnetii, Francisella tularensis, human Herpes virus 1 and 2, Mycobacterium tuberculosis, Plasmodium falciparum, and Vaccinia virus) can be used as a vaccine, as diagnostic markers, and as therapeutic agents. In particularly preferred aspects, the antigens have quantified and known relative reactivities with respect to sera of a population infected with the pathogen, and have a known association with a disease parameter.
    Type: Application
    Filed: October 20, 2014
    Publication date: February 26, 2015
    Inventors: Philip Felgner, David Huw Davies, Xiaowu Liang
  • Publication number: 20150037367
    Abstract: Contemplated compositions, devices, and methods are drawn to various antigens from Herpes Simplex Virus type 1 (HSV-1) and Herpes Simplex Virus type 2 (HSV-2) and their use in vaccines, therapeutic agents, and various diagnostic tests. In particularly preferred aspects, the antigens are immunodominant and have quantified and known relative reactivities with respect to sera of a population infected with the pathogen, and/or have a known association with a disease parameter.
    Type: Application
    Filed: June 29, 2012
    Publication date: February 5, 2015
    Inventors: David Huw Davies, Xiaowu Liang, Philip Felgner
  • Publication number: 20140004141
    Abstract: Contemplated compositions, devices, and methods are drawn to various antigens from the pathogen T. gondii and their use in various diagnostic tests, vaccines, and therapeutic agents. In particularly preferred aspects, the antigens are immunodominant and have quantified and known relative reactivities with respect to sera of a population infected with the pathogen, and/or have a known association with a disease parameter.
    Type: Application
    Filed: December 20, 2011
    Publication date: January 2, 2014
    Applicant: Immport Therapeutics, Inc.
    Inventors: David Huw Davies, Xiaowu Liang, Philip Felgner
  • Publication number: 20100119535
    Abstract: Contemplated compositions, devices, and methods comprise immunodominant antigens from selected human pathogens (Burkholderia pseudomallei, Borrelia burgdorferi, Brucella melitensis, Chlamydia muridarum, Coxiella burnetii, Francisella tularensis, human Herpes virus 1 and 2, Mycobacterium tuberculosis, Plasmodium falciparum, and Vaccinia virus) can be used as a vaccine, as diagnostic markers, and as therapeutic agents. In particularly preferred aspects, the antigens have quantified and known relative reactivities with respect to sera of a population infected with the pathogen, and have a known association with a disease parameter.
    Type: Application
    Filed: November 1, 2007
    Publication date: May 13, 2010
    Applicant: IMMPORT THERAPEUTICS, INC.
    Inventors: Philip Felgner, David Huw Davies, Xiaowu Liang
  • Patent number: 7393533
    Abstract: The invention relates to, among other things, methods of protecting against poxvirus infection or pathogenesis and including pox viruses such as small pox (variola major and variola minor), cowpox, monkey pox vaccinia virus, and Molluscum Contagiosum using compositions such as human, humanized and chimeric antibodies that specifically bind to H3L protein.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: July 1, 2008
    Assignee: La Jolla Institute for Allergy and Immunology
    Inventors: Shane Crotty, Philip L Felgner, David Huw Davies
  • Patent number: 6541491
    Abstract: Pharmaceutical compositions comprising an inhibitor of ras farnesylation of formula (I) wherein, R1 is for example H and further values as defined in the specification; R2 is for example H and further values as defined in the specification; R3 is for example H or a substituent having values as defined in the specification; p is 0-3 in which R3 values can be the same or different; L is a linking moiety for example —CO—NH2— and further values as defined in the specification; A is selected from phenyl; naphthyl; a 5-10 membered monocyclic or bicyclic heteroaryl ring containing up to 5 heteroatoms where the heteroatoms are independently selected from O, N and S; or a —S—S-dimer thereof when R2=H; or an enantiomer, diastereoisomer, pharmaceutically acceptable salt, prodrug or solvate thereof together with a pharmaceutically acceptable diluent or carrier. A particular use is cancer therapy.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: April 1, 2003
    Assignee: Zeneca Limited
    Inventors: David Huw Davies, Francis Thomas Boyle, James Michael Wardleworth, Peter Wedderburn Kenny, Peter Beverley Scholes, Zbigniew Stanely Matusiak
  • Patent number: 6436691
    Abstract: Antibody Directed Enzyme Prodrug Therapy (ADEPT) systems for use in cancer based on mutated carboxypeptidase B (CPB) enzymes. Enzyme conjugates for ADEPT are substantially non-immunogenic in humans comprising a targeting moiety (for example an antibody) capable of binding with a tumor associated antigen, the targeting moiety being linked to a mutated form of a CPB enzyme capable of converting a prodrug into an antineoplastic drug wherein the prodrug is not significantly convertible into antineoplastic drug in humans by natural unmutated enzyme. A preferred enzyme mutant is human pancreatic CPB comprising a Lys or Arg residue at position 253. Suitable mustard prodrugs are disclosed in the specification.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: August 20, 2002
    Assignee: Zeneca Limited
    Inventors: Anthony Michael Slater, David Charles Blakey, David Huw Davies, John Frederick Hennam, Laurent Francois Andre Hennequin, Peter Robert Marsham, Robert Ian Dowell
  • Patent number: 6232338
    Abstract: Pharmaceutical compositions comprising an inhibitor of ras farnesylation of formula (I) wherein, R1 is for example H and further values as defined in the specification; R2 is for example H and further values as defined in the specification; R3 is for example H or a substituent having values as defined in the specification; p is 0-3 in which R3 values can be the same or different; L is a linking moiety for example —CO—NH2— and further values as defined in the specification; A is selected from phenyl; naphthyl; a 5-10 membered monocyclic or bicyclic heteroaryl ring containing up to 5 heteroatoms where the heteroatoms are independently selected from O, N and S; or a —S—S— dimer thereof when R2=H; or an enantiomer, diastereoisomer, pharmaceutically acceptable salt, prodrug or solvate thereof together with a pharmaceutically acceptable diluent or carrier. A particular use is cancer therapy.
    Type: Grant
    Filed: February 3, 1998
    Date of Patent: May 15, 2001
    Assignee: Zeneca Limited
    Inventors: David Huw Davies, Francis Thomas Boyle, James Michael Wardleworth, Peter Wedderburn Kenny, Peter Beverley Scholes, Zbigniew Stanely Matusiak
  • Patent number: 5985281
    Abstract: A two component system for therapeutic treatment of a host, having a first component comprising a targeting moiety capable of binding with a tumour associated antigen, linked to a mutated enzyme capable of converting a prodrug into an antineoplastic drug, and a second component comprising a prodrug convertible under the influence of the mutated enzyme to the antineoplastic drug. The mutated enzyme is a mutated form of a natural host enzyme which recognizes its natural substrate by an ion pair interaction with the substrate, wherein the mutated enzyme and prodrug have structures such that the polarity of the mutated enzyme/prodrug ion pair interaction is reversed relative to the natural host enzyme/natural substrate ion pair interaction. The first component is substantially non-immunogenic in the host and the prodrug second component is not significantly convertible into antineoplastic drug in the host by natural unmutated host enzyme.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: November 16, 1999
    Assignee: Zeneca Limited
    Inventors: Christopher John Taylorson, Hendrikus Johannes Eggelte, Antonio Tarragona-Fiol, Brian Robert Rabin, Francis Thomas Boyle, John Frederick Hennam, David Charles Blakey, Peter Robert Marsham, David William Heaton, David Huw Davies, Anthony Michael Slater, Laurent Francois Andre Hennequin
  • Patent number: 5953311
    Abstract: A method and apparatus are disclosed for determining the boundaries of guard intervals of data symbols being received in a coded orthogonal frequency division multiplexed signal. Temporal samples separated by an interval of an active interval of a data symbol are associated in pairs, and difference signals obtained. The dispersion of a first comparison block of difference signals is determined, and compared to the dispersion of a second comparison block of difference signals, the second comparison block being displaced from the first comparison block by n samples. An F ratio is calculated for the dispersions of the two blocks. F ratios are iterated in a succession of comparison blocks, and a signal representing the F ratios subjected to peak detection. The peaks represent the boundaries of the symbol's guard interval. This information is utilized in synchronizing an FFT window for subsequent signal reconstruction.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: September 14, 1999
    Assignee: Discovision Associates
    Inventors: David Huw Davies, Jonathan Parker, Anthony Peter John Claydon
  • Patent number: 4085208
    Abstract: This invention relates to the preparation of novel 1-epi-aminoglycosides, useful as antibacterial agents, and also relates to the process for the preparation of known as well as novel 1-N-substituted aminoglycoside antibacterial agents.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: April 18, 1978
    Assignee: Schering Corporation
    Inventors: Alan K. Mallams, David Huw Davies
  • Patent number: 4066752
    Abstract: This invention relates to the preparation of novel 1-desamino-1-oxo-aminoglycosides and their use as intermediates in the preparation of novel 1-desamino-1-hydroxy and 1-desamino-1-epi-hydroxyaminoglycoside antibacterial agents.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: January 3, 1978
    Assignee: Schering Corporation
    Inventors: Alan K. Mallams, David Huw Davies
  • Patent number: 4009328
    Abstract: Aminoglycoside 66-40C, a minor product produced by the fermentation of Micromonospora inyoensis, is separated from said fermentation mixture, and is used as an intermediate in preparing the known antibiotic, sisomicin, as well as 6' -N-alkylsisomicins having antibacterial activity. Claimed are Aminoglycoside 66-40C as well as 6' -N-t-alkylsisomicins having a tertiary carbon bonded to the 6' -nitrogen.
    Type: Grant
    Filed: May 2, 1975
    Date of Patent: February 22, 1977
    Assignee: Schering Corporation
    Inventors: Alan K. Mallams, Richard W. Tkach, David Huw Davies
  • Patent number: 3978214
    Abstract: The novel aminoglycoside, 0-2-amino-2,3,4-trideoxy-.alpha.-D-glycero-hex-4-enopyranosyl-(1.fwdarw.4) -garamine, is prepared by treating Aminoglycoside 66-40C with aqueous acid followed by treatment with a hydride donor reducing agent. Pharmaceutical compositions of the novel aminoglycoside and its pharmaceutically acceptable acid addition salts are described as well as their use as antiprotozoal agents.
    Type: Grant
    Filed: May 2, 1975
    Date of Patent: August 31, 1976
    Assignee: Schering Corporation
    Inventors: Alan K. Mallams, David Huw Davies