Patents by Inventor David A. Hammond

David A. Hammond 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).

  • Publication number: 20140181977
    Abstract: At least some incoming traffic is distributed into a first set of traffic groups according to a first grouping scheme. Communication activity from a potentially malicious source may be grouped in a given traffic group in which communication activity from an acceptable source is also grouped. Potentially malicious communication activity is detected in the given traffic group. Traffic in the given traffic group is processed using a first traffic processing mode associated with potentially malicious communication activity, in which at least some traffic that is distributed into the given traffic group is discarded. In response to a dynamic trigger the grouping scheme is altered to one or more further grouping schemes in order that the communication activity from the acceptable source is likely to be subsequently grouped into a traffic group which is different to a group into which the communication activity from the potentially malicious source is subsequently grouped.
    Type: Application
    Filed: February 28, 2014
    Publication date: June 26, 2014
    Applicant: Metaswitch Networks Ltd
    Inventor: David HAMMOND
  • Publication number: 20140102248
    Abstract: A method of balancing a crankshaft includes connecting a torsion-absorbing pendulum to a cheek of the crankshaft, which is coupled to a crankpin. As the pendulum connected to the cheek has insufficient mass to balance the crankshaft, a lightening bore is formed through a bisection plane of the cheek. In forming the lightening bore, enough material is removed from the cheek so that the mass of the pendulum becomes sufficient to balance the crankshaft.
    Type: Application
    Filed: October 17, 2012
    Publication date: April 17, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Jeffrey Eliot Chottiner, Rick L. Williams, John Edward Brevick, Gregory Michael Pietron, Matthew David Hammond
  • Publication number: 20140083329
    Abstract: In one or more embodiments, the present disclosure provides for a process for preparing a dispersion of starch particles in an aqueous liquid. In one or more embodiments, the process includes introducing a feed starch and the aqueous liquid into a rotor stator mixer, maintaining the feed starch and the aqueous liquid in the rotor stator mixer at a temperature ranging from a gelation temperature to less than a solubilization temperature, and shearing the feed starch into starch particles with the rotor stator mixer to form the dispersion of starch particles in the aqueous liquid. In one or more embodiments, the starch particles produced by this process have an average particle size diameter of no larger than 2 micrometers and the dispersion has 20 to 65 weight percent of the starch particles based on a total weight of the dispersion.
    Type: Application
    Filed: November 26, 2013
    Publication date: March 27, 2014
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Gregory Welsch, Brian Ninness, Michael Read, Timothy Young, Michal Matteucci, David Hammond, Liang Hong, Donald Ervick, JR.
  • Publication number: 20130288353
    Abstract: A kinase is used in a biological indicator for validation of treatment processes designed to reduce the amount or activity of a biological agent in a sample. The indication can be used for validation of sterilisation treatment. The formation of ATP from a substrate comprising ADP is measured via the liciferin/luciferate system in a luminameter. Thermostable adenylate kinase from sulfolobus acidocaldarius is especially suitable for the validation of procedures to inactivate transmissable spongiform encephalopathy agents.
    Type: Application
    Filed: February 25, 2013
    Publication date: October 31, 2013
    Applicant: Health Protection Agency
    Inventors: J. Mark Sutton, Neil David Hammond Raven
  • Publication number: 20130235727
    Abstract: Methods, systems, and computer readable media for preventing traffic congestion in a long term evolution (LTE) multi-user equipment (multi-UE) simulator device are disclosed. In one example, a method includes transmitting, from a first module to a second module over a shared bus, one of a plurality of LTE subframe signal portions at the beginning of a first transmission interval. The method further includes sending, from the first module to a third module over the shared bus, a trigger signal upon completing the transmission of the LTE signal portion. The method also includes forwarding, from the third module to the second module over the shared bus, decoded control information associated with at least one of the plurality of LTE subframe signal portions during an idle time period defined by the receipt of the trigger signal and the beginning of a second transmission interval.
    Type: Application
    Filed: March 12, 2012
    Publication date: September 12, 2013
    Inventors: Damon Lee Campbell, David Hammond, William Clarry Hough, Eric Hugh Wilke
  • Patent number: 8389208
    Abstract: A kinase is used in a biological indicator for validation of treatment processes designed to reduce the amount or activity of a biological agent in a sample. The indication can be used for validation of sterilization treatment. The formation of ATP from a substrate comprising ADP is measured via the liciferin/luciferate system in a luminameter. Thermostable adenylate kinase from sulfolobus acidocaldarius is especially suitable for the validation of procedures to inactivate transmissible spongiform encephalopathy agents.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: March 5, 2013
    Assignee: Health Protection Agency
    Inventors: J. Mark Sutton, Neil David Hammond Raven
  • Publication number: 20120243749
    Abstract: A system and method for obtaining biometric imagery such as iris imagery from large capture volumes is disclosed wherein a substantially rotationally symmetric mirror such as a cone or sphere is rotated at a constant velocity about a central axis.
    Type: Application
    Filed: June 11, 2012
    Publication date: September 27, 2012
    Inventors: Keith J. Hanna, George Herbert Needham Riddle, David James Hirvonen, David Hammond Sliney
  • Publication number: 20120242821
    Abstract: A system and method for obtaining biometric imagery such as iris imagery from large capture volumes is disclosed wherein a substantially rotationally symmetric mirror such as a cone or sphere is rotated at a constant velocity about a central axis.
    Type: Application
    Filed: June 11, 2012
    Publication date: September 27, 2012
    Inventors: Keith J. HANNA, George Herbert Needham Riddle, David James Hirvonen, David Hammond Sliney
  • Patent number: 8229416
    Abstract: Methods, systems, and computer readable media for stress testing mobile network equipment using CPRI are disclosed. According to one method, a plurality of messages is generated for simulating a plurality of user equipment (UE) devices. The plurality of messages is transmitted over a common public radio interface (CPRI) link to a radio equipment controller (REC) in order to stress test the REC component.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: July 24, 2012
    Assignee: Ixia
    Inventors: Arda Akman, Matthew Balkwill, David Hammond, Richard Karp, Edward Panofsky, Glenn Stewart, Kalyan Sundhar
  • Patent number: 8212870
    Abstract: A system and method for obtaining biometric imagery such as iris imagery from large capture volumes is disclosed wherein a substantially rotationally symmetric mirror such as a cone or sphere is rotated at a constant velocity about a central axis.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: July 3, 2012
    Inventors: Keith J. Hanna, George Herbert Needham Riddle, David James Hirvonen, David Hammond Sliney
  • Publication number: 20120127295
    Abstract: A system and method for obtaining biometric imagery such as iris imagery from large capture volumes is disclosed wherein a substantially rotationally symmetric mirror such as a cone or sphere is rotated at a constant velocity about a central axis.
    Type: Application
    Filed: February 16, 2010
    Publication date: May 24, 2012
    Applicant: Global Rainmakers, Inc.
    Inventors: Keith J. Hanna, George Herbert Needham Riddle, David James Hirvonen, David Hammond Sliney
  • Patent number: 8110391
    Abstract: A transmissible spongiform encephalopathy (TSE) agent is inactivated by exposing the TSE agent to a thermostable proteolytic enzyme at elevated temperature and at acid or alkaline pH. Following this step, or separately, presence of TSE infectivity is detected by detection of dimers of prion protein.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: February 7, 2012
    Assignee: Health Protection Agency
    Inventors: Neil David Hammond Raven, John Mark Sutton
  • Publication number: 20110211054
    Abstract: A system and method for obtaining biometric imagery such as iris imagery from large capture volumes is disclosed wherein a substantially rotationally symmetric mirror such as a cone or sphere is rotated at a constant velocity about a central axis.
    Type: Application
    Filed: February 16, 2010
    Publication date: September 1, 2011
    Applicant: Global Rainmakers, Inc.
    Inventors: Keith J. Hanna, George Herbert Needham Riddle, David James Hirvonen, David Hammond Sliney
  • Publication number: 20100255521
    Abstract: Disclosed are compounds of the formula (I): wherein R3, R4, R5, R9, and R10 are selected from the group consisting of H and groups or atoms other than H, and R6 and R8 are halo or hydrogen; X1, X2, and X3 are independently O or S; provided that R9 and R10 are not simultaneously H, when all of X1, X2, and X3 are O; and of the formula (II) wherein R11-R14 are selected from the group consisting of H and groups or atoms other than H; X4-X9 are independently O or S; n and m are 0 or 1 but m and n cannot be 0 simultaneously; R15-R24 can be H or any substituent so long as the compound of formula II upon hydrolysis provides a fluorescent compound. These compounds are useful as substrates with high specificity for organophosphatase particularly human paraoxonase and bacterial organophosphorus hydrolase.
    Type: Application
    Filed: January 3, 2007
    Publication date: October 7, 2010
    Inventors: Serguei Soukharev, David Hammond
  • Publication number: 20100075678
    Abstract: Methods, systems, and computer readable media for stress testing mobile network equipment using CPRI are disclosed. According to one method, a plurality of messages is generated for simulating a plurality of user equipment (UE) devices. The plurality of messages is transmitted over a common public radio interface (CPRI) link to a radio equipment controller (REC) in order to stress test the REC component.
    Type: Application
    Filed: December 17, 2008
    Publication date: March 25, 2010
    Inventors: Arda Akman, Matthew Balkwill, David Hammond, Richard Karp, Edward Panofsky, Glenn Stewart, Kalyan Sundhar
  • Publication number: 20090317794
    Abstract: A kinase is used in a biological indicator for validation of treatment processes designed to reduce the amount or activity of a biological agent in a sample. The indication can be used for validation of sterilisation treatment. The formation of ATP from a substrate comprising ADP is measured via the liciferin/luciferate system in a luminameter. Thermostable adenylate kinase from sulfolobus acidocaldarius is especially suitable for the validation of procedures to inactivate transmissible spongiform encephalopathy agents.
    Type: Application
    Filed: March 22, 2005
    Publication date: December 24, 2009
    Inventors: J. Mark Sutton, Neil David Hammond Raven
  • Publication number: 20090186368
    Abstract: In an assay, an analyte in a sample is contacted with a thermostable reporter adenylate kinase coupled to a binding agent specific for the analyte, wherein a complex is formed. ADP is added, and then formation of ATP is monitored. Prior to the addition of ADP, endogenous kinase and uncomplexed thermostable reporter adenylate kinase is substantially removed by washing and residual endogenous kinase is inactivated by heating. Prior to contacting the analyte with the thermostable reporter adenylate kinase, the sample has a background activity of at least 300,000 Relative Light Units per mg protein per ml sample when measured in the presence of luciferin/luciferase by a luminometer.
    Type: Application
    Filed: October 14, 2008
    Publication date: July 23, 2009
    Inventors: Neil David Hammond Raven, Matthew Patrick Wictome, J. Mark Sutton, Susan O'Brien, Heather Murdoch
  • Publication number: 20080178306
    Abstract: A transmissible spongiform encephalopathy (TSE) agent is inactivated by exposing the TSE agent to a thermostable proteolytic enzyme at elevated temperature and at acid or alkaline pH. Following this step, or separately, presence of TSE infectivity is detected by detection of dimers of prion protein.
    Type: Application
    Filed: October 11, 2007
    Publication date: July 24, 2008
    Inventors: Neil David Hammond Raven, John Mark Sutton
  • Patent number: 7374900
    Abstract: Disclosed are compounds of the formula (I): wherein R3, R4, R5, R9, and R10 are selected from the group consisting of H and groups or atoms other than H, and R6 and R8 are halo or hydrogen; X1, X2, and X3 are independently O or S; provided that R9 and R10 are not simultaneously H, when all of X1, X2, and X3 are O; and of the formula (II) wherein R11-R14 are selected from the group consisting of H and groups or atoms other than H; X4-X9 are independently O or S; n and m are 0 or 1 but m and n cannot be 0 simultaneously; R15-R24 can be H or any substituent so long as the compound of formula II upon hydrolysis provides a fluorescent compound. These compounds are useful as substrates with high specificity for organophosphatase particularly human paraoxonase and bacterial organophosphorus hydrolase.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: May 20, 2008
    Assignee: The American National Red Cross
    Inventors: Serguei Soukharev, David Hammond
  • Publication number: 20070225226
    Abstract: The present invention provides ligands that can bind CRP with high affinity and high specificity. The present invention also provides a method of treating a condition of elevated CRP through apheresis, by reducing CRP level via its binding to a CRP-specific ligand ex vivo. Systems of performing apheresis to reduce CRP levels are also provided.
    Type: Application
    Filed: March 23, 2007
    Publication date: September 27, 2007
    Inventors: David Hammond, Julie Lathrop