Patents by Inventor David Chapman

David Chapman 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: 8183251
    Abstract: The invention provides compounds of formula (I): wherein R1 and R2 are as defined in the specification; processes for their preparation; pharmaceutical compositions containing them; a process for preparing the pharmaceutical compositions; and their use in therapy. The compounds are useful as MMP inhibitors.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: May 22, 2012
    Assignee: AstraZeneca AB
    Inventors: David Chapman, Balint Gabos, Magnus Munck af Rosenschöld
  • Patent number: 8175063
    Abstract: Systems and methods for Walsh code assignment are provided. In accordance with the disclosed exemplary embodiments, when a set of mobile communication units (MU) is in a control/hold state, instead of a base transceiver station (BTS) assigning Walsh codes for respective dedicated control channels (dcch ) to the set of mobile communication units (MU) on a one-to-one basis, the base transceiver station (BTS) circulates the Walsh codes among the set of mobile communication units (MU). Thus, at a given time, the base transceiver station (BTS) has assigned the available Walsh codes to only a subset of the mobile communication units (MU) in the control/hold state. Accordingly, this Walsh code assignment allows the system to support more mobile communication units (MU) in the control/hold state.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: May 8, 2012
    Assignee: Nextel Communications Inc.
    Inventors: Nagi A. Mansour, Shane David Chapman
  • Patent number: 7989405
    Abstract: A method of preventing microbial growth in oil-water metalworking fluid in a machine wherein lubricating oil or hydraulic or tapping fluid can contaminate the metalworking fluid, comprises adding a partitionable anti-microbial agent, active against micro-organisms present in the metalworking fluid, to the lubricating oil or hydraulic or tapping fluid whereby an effective quantity of anti-microbial agent can migrate into the metalworking fluid to reduce micro-organism activity. A machine tool lubricating oil or hydraulic or tapping fluid composition comprises in a mineral oil or other lubricant base and an oil-water partitionable anti-microbial, active against micro-organisms present in oil-water metalworking fluids.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: August 2, 2011
    Assignee: Illinois Tool Works Inc.
    Inventors: Christopher John Nettleship, Stephen David Chapman
  • Patent number: 7945244
    Abstract: A method and apparatus for communicating using a plurality of identities is disclosed. The method includes communicating on a mobile communications device using a first identity having an associated first content and communicating using a second identity having an associated second content. The apparatus includes a processor for communicating with a communications network using the first identity having the associated first content and using the second identity having the associated second content.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: May 17, 2011
    Assignee: Nextel Communications Inc.
    Inventors: Michael Delaet, John McCloskey, Peter Agnvall, Shane David Chapman
  • Publication number: 20100280048
    Abstract: The invention provides certain novel 6-heteroaryl-5-methyl-3-oxo-4-[3(trifluoromethyl)phenyl]-3,4-dihydropyrazine-2-carboxamide derivatives and pharmaceutically acceptable salts thereof and particular Forms thereof; together with processes for their preparation, pharmaceutical compositions containing them and their use in therapy. The compounds are inhibitors of human neutrophil elastase.
    Type: Application
    Filed: November 5, 2008
    Publication date: November 4, 2010
    Applicant: ASTRAZENECA R&D
    Inventors: Debra Ainge, David Chapman, Martin Lindsjo, Hans Lonn, Michael Lundkvist, Magnus Munck AF Rosen-Schold, Antonios Nikitidis, John Pavey
  • Patent number: 7727460
    Abstract: A plasma arc reactor and process for producing a powder from a solid feed material, for example aluminium, is provided. The reactor comprises: (a) a first electrode (5), (b) a second electrode (10) which is adapted to be spaced apart from the first electrode by a distance sufficient to achieve a plasma arc therebetween, (c) means for introducing a plasma gas into the space between the first and second electrodes, (d) means for generating a plasma arc in the space between the first and second electrodes, wherein the first electrode has a channel (7) running therethrough, an outlet of the channel exiting into the space between the first and second electrodes, and wherein means are provided for feeding solid material (20) through the channel to exit therefrom via the outlet into the space between the first and second electrodes.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: June 1, 2010
    Assignee: Tetronics Limited
    Inventors: David Edward Deegan, Chris David Chapman, Timothy Paul Johnson
  • Patent number: 7686556
    Abstract: A truss fastener which includes a shaft having a head and a tip. Threading extends along the shaft from the tip end toward the head end of the shaft. The threading is interrupted, abbreviated, and/or otherwise separated by wings projecting from the surface of the shaft. The interrupting projection extends in a generally oblique orientation to the center axis of the fastener.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: March 30, 2010
    Assignee: Handy & Harman
    Inventors: Richard Belinda, David Chapman
  • Patent number: 7685545
    Abstract: The technology disclosed relates to granular analysis of design data used to prepare chip designs for manufacturing and to identification of similarities and differences among parts of design data files. In particular, it relates to parsing data and organizing into canonical forms, digesting the canonical forms, and comparing digests of design data from different sources, such as designs and libraries of design templates. Organizing the design data into canonical forms generally reduces the sensitivity of data analysis to variations in data that have no functional impact on the design. The details of the granular analysis vary among design languages used to represent aspects of a design. For various design languages, granular analysis includes partitioning design files by header/cell portions, by separate handling of comments, by functionally significant/non-significant data, by whitespace/non-whitespace, and by layer within a unit of design data.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: March 23, 2010
    Assignee: Oasis Tooling, Inc.
    Inventors: David Chapman, Thomas Grebinski
  • Publication number: 20090307640
    Abstract: The technology disclosed relates to granular analysis of design data used to prepare chip designs for manufacturing and to identification of similarities and differences among parts of design data files. In particular, it relates to parsing data and organizing into canonical forms, digesting the canonical forms, and comparing digests of design data from different sources, such as designs and libraries of design templates. Organizing the design data into canonical forms generally reduces the sensitivity of data analysis to variations in data that have no functional impact on the design. The details of the granular analysis vary among design languages used to represent aspects of a design. For various design languages, granular analysis includes partitioning design files by header/cell portions, by separate handling of comments, by functionally significant/non-significant data, by whitespace/non-whitespace, and by layer within a unit of design data.
    Type: Application
    Filed: August 5, 2009
    Publication date: December 10, 2009
    Applicant: Oasis Tooling, Inc.
    Inventors: David Chapman, Thomas Grebinski
  • Publication number: 20090307639
    Abstract: The technology disclosed relates to granular analysis of design data used to prepare chip designs for manufacturing and to identification of similarities and differences among parts of design data files. In particular, it relates to parsing data and organizing into canonical forms, digesting the canonical forms, and comparing digests of design data from different sources, such as designs and libraries of design templates. Organizing the design data into canonical forms generally reduces the sensitivity of data analysis to variations in data that have no functional impact on the design. The details of the granular analysis vary among design languages used to represent aspects of a design. For various design languages, granular analysis includes partitioning design files by header/cell portions, by separate handling of comments, by functionally significant/non-significant data, by whitespace/non-whitespace, and by layer within a unit of design data.
    Type: Application
    Filed: June 10, 2009
    Publication date: December 10, 2009
    Applicant: Oasis Tooling, Inc.
    Inventors: David Chapman, Thomas Grebinski
  • Publication number: 20080221139
    Abstract: The invention provides compounds of formula (I): wherein R1 and R2 are as defined in the specification; processes for their preparation; pharmaceutical compositions containing them; a process for preparing the pharmaceutical compositions; and their use in therapy. The compounds are useful as MMP inhibitors.
    Type: Application
    Filed: November 28, 2007
    Publication date: September 11, 2008
    Inventors: David Chapman, Balint Gabos, Magnus Munck af Rosenschold
  • Patent number: 7345946
    Abstract: A wordline driver circuit can include single stage level shifters to translate a low voltage level (VGND to Vcc) to a high voltage level (Vnwl to Vpp). A wordline driver can further include a two-stage discharge circuit to pull down a wordline from a boosted high voltage Vpp to a boosted low voltage Vnwl. A two-stage discharge circuit can include (i) a first discharge path that can pull the wordline toward a first low voltage VGND; and (ii) a second discharge path that can pull the wordline toward a lower boosted low voltage Vnwl. Initially discharging a wordline to a first low voltage can reduce the amount of charge injected into a boosted low voltage Vnwl supply. A two-stage discharge circuit can be self timed or externally timed.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: March 18, 2008
    Assignee: Cypress Semiconductor Corporation
    Inventors: David Chapman, Anupam Arora, Lin Ma, Richard Parent
  • Patent number: 7330388
    Abstract: In one arrangement, a semiconductor memory device can include a sense amplifier circuit (300) having drive high transistors (P30/P31), drive low transistors (N31/N32) and equalization transistors (N33-N35). Such transistors can have a body bias (VbiasN, VbiasP) that varies according to the operation conditions of the semiconductor memory device. Such variations can include any of: manufacturing process variations, operating temperature, or operating voltage.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: February 12, 2008
    Assignee: Cypress Semiconductor Corporation
    Inventors: David Chapman, Richard Parent
  • Patent number: 7313041
    Abstract: A semiconductor device memory device (300) can include a sense amplifier (302) enabled according to a first sense signal (setn) and a second sense signal (setp). In a sense operation, a first sense signal (setn) can be driven to a first, below ground potential. Subsequently, in the same sense operation, the first sense signal (setn) can be raised and maintained at a ground potential. Such an approach can substantially eliminate a sense amplifier stall condition that can occur under low temperature and/or low voltage operation. According to another aspect of the embodiments, a more negative logical “0” value can be written back into the memory cell during an access and/or refresh operation. This more negative value is available due to the below ground level provided during a sense operation.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: December 25, 2007
    Assignee: Cypress Semiconductor Corporation
    Inventors: David Chapman, Richard Parent
  • Publication number: 20070239098
    Abstract: A dressing for treating damaged tissue, incorporates a pair of electrodes and a conductive gel between the electrodes. An electric current passes between the electrodes through the gel to repair the damaged tissue. Sensors can be incorporated into the dressing along with a control unit. The control unit can vary current supplied to the electrodes according to environmental parameters detected by the sensors. Alternatively, one or more pre-defined programmes can be stored in the control unit for supplying an alternating current to the electrodes with a varying amplitude, frequency and waveform.
    Type: Application
    Filed: September 30, 2004
    Publication date: October 11, 2007
    Applicant: Carpmaels & Ransford
    Inventor: David Chapman-Jones
  • Publication number: 20070236049
    Abstract: There is disclosed a modular assembly and method of forming the assembly. The assembly is particularly suitable as at least part of a rear end of a transportation or automotive vehicle. The assembly preferably includes one or more plastic structure adhesively secured to one or more metal structures.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 11, 2007
    Inventors: David Chapman, Luis Lorenzo, Keith Kauffman, Ashish Kotnis
  • Publication number: 20070178871
    Abstract: A communication system comprises first and second devices (2,3) having respective housings (5,6); a data trans-mission line (8) for transmitting data between the devices in a reflective signalling format; and conversion means (4) connectable to the line externally of the housings (5,6) for converting data between a reflective signalling format and another format. A method of signalling between first and second devices (2,3) linked by a transmission line (8) and of sensing a security violation of the line (8) comprises the steps of (a) transmitting a signal from the first device to the second device, reflecting the signal back to the first device in a manner corresponding to a first bit sequence, receiving the signal thus reflected at the first device, and comparing this signal with the transmitted signal to determine whether there has been a security violation of the line and to extract the first bit sequence.
    Type: Application
    Filed: March 31, 2004
    Publication date: August 2, 2007
    Inventors: Christopher Cowdery, David Chapman, John Wood
  • Publication number: 20070107651
    Abstract: A transition device for providing a smooth corner of a pair of angular oriented interconnected windshields on a boat, the boat having a forward facing or front windshield and a side facing windshield, both the windshields being mounted in a formed aluminum molding. The transition device comprises a first element attached to the molding of the forward facing windshield at an upper end of the joint and terminating at the joint in a ball and a second element attached to the molding of the side facing windshield at the upper end of the joint and terminating in a socket. The ball and the socket are shaped and sized to fit together to form a smooth transition at the upper end of the joint so that the corner joint appears to have a ball and socket joint.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 17, 2007
    Inventors: Ernest Smith, David Chapman
  • Publication number: 20070006801
    Abstract: The use of surfactants that do not themselves act as dopants and are isoelectronic with either the group III or group V host atoms during OMVPE growth significantly reduces the incorporation of background impurities such as carbon, oxygen, sulfur and/or silicon. For example, the use of the surfactants Sb or Bi significantly reduces the incorporation of background impurities such as carbon, oxygen, sulfur and/or silicon during the OMVPE growth of III/V semiconductor materials, for example GaAs, GaInP, and GaP layers. As a result, an effective method for controlling the incorporation of impurity atoms is adding a minute amount of surfactant during OMVPE growth.
    Type: Application
    Filed: July 6, 2006
    Publication date: January 11, 2007
    Inventors: Gerald Stringfellow, Alexander Howard, David Chapman
  • Patent number: 7155207
    Abstract: A system and method of analyzing communications between a calling party and a called party is disclosed. In an embodiment of a method of the present invention, the method includes receiving a communication at a service provider network, recording the communication, analyzing a voice content portion of the recorded communication to determine if the voice content portion contains a keyword stored in a database, and forwarding the recorded communication to a law enforcement agency if the keyword is detected in the voice content portion. In an embodiment of a system of the present invention, the system includes a buffer memory for receiving a recorded communication from a service provider network and a content analysis system coupled to the buffer memory.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: December 26, 2006
    Assignee: Nextel Communications Inc.
    Inventors: David Chapman, Ben Levitan