Patents by Inventor David John McDonald

David John McDonald 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: 8080612
    Abstract: The present invention provides polymeric compositions having a high polymer size and a low Tg. These novel compositions are useful as plastic additives. Also provided is a method of improving the processing of a matrix resin by adding one or more of the novel polymeric compositions.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: December 20, 2011
    Assignee: Rohm and Haas Company
    Inventors: Edward Joseph Troy, David John McDonald, Jane Elizabeth Weier
  • Patent number: 7893157
    Abstract: The present invention provides polymeric compositions having a high polymer size and a low Tg. These novel compositions are useful as plastic additives. Also provided is a method of improving the processing of a matrix resin by adding one or more of the novel polymeric compositions.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: February 22, 2011
    Assignee: Rohm and Haas Company
    Inventors: Edward Joseph Troy, David John McDonald, Jane Elizabeth Weier
  • Patent number: 7609706
    Abstract: A system for correlating and displaying dissimilar communication protocols is disclosed. In one embodiment, the system comprises user communication information that spans at least two dissimilar communication protocols, a first communication protocol, and a second communication protocol. The system also comprises a software code segment configured to detect correlation data identifying a first call portion associated with the first communication protocol, and configured to detect correlation data identifying a second call portion associated with the second communication protocol, where the correlation data comprises components relating to the first communication protocol and the second communication protocol, and wherein the correlation data is detected in real time.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: October 27, 2009
    Assignee: Agilent Technologies, Inc.
    Inventors: Alistair Kenneth Clement Scott, David John McDonald
  • Patent number: 7324502
    Abstract: A system for mapping dissimilar communication protocols is disclosed. In one embodiment, the system comprises user communication information that spans at least two dissimilar communication networks, a first communication protocol associated with a first communication network, a second communication protocol associated with a second communication network, and a software code segment configured to detect a call setup identifier and a call tear-down identifier associated with the first communication protocol, the software code segment also configured to detect a call setup identifier and call tear-down identifier associated with the second communication protocol, where the call setup identifier and the call tear-down identifier associated with the second communication protocol may occur within a predetermined amount of time before or after the call setup identifier or the call tear-down identifier associated with the first communication protocol.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: January 29, 2008
    Assignee: Agilent Technologies, Inc.
    Inventors: David Charles Sheldon, David John McDonald, Douglas John Carson
  • Patent number: 7309729
    Abstract: Aqueous-form additive systems, and methods of blending the same with a matrix resin, are disclosed whereby acrylic-based impact modifier compositions, butadiene-based impact modifier compositions and acrylic-based processing aids are used in aqueous form without the need for isolation to the traditional powder-form. The aqueous additive systems of the present invention provide a means for the design of novel additive compositions. The aqueous additive systems of the present invention also provide a great degree of flexibility in preparation of matrix resin blends and formulations. Additionally, the aqueous additive systems of the present invention allow for the reduced cost of manufacturing additives and reduced cost in blending matrix resin formulations.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: December 18, 2007
    Assignee: Rohm and Haas Company
    Inventors: Richard Henry Weese, Chuen-Shyong Chou, Eugene Patrick Dougherty, Jean Marie Brady, David John McDonald
  • Patent number: 7238742
    Abstract: Aqueous-form additive systems, and methods of blending the same with a matrix resin, are disclosed whereby acrylic-based impact modifier compositions, butadiene-based impact modifier compositions and acrylic-based processing aids are used in aqueous form without the need for isolation to the traditional powder-form. The aqueous additive systems of the present invention provide a means for the design of novel additive compositions. The aqueous additive systems of the present invention also provide a great degree of flexibility in preparation of matrix resin blends and formulations. Additionally, the aqueous additive systems of the present invention allow for the reduced cost of manufacturing additives and reduced cost in blending matrix resin formulations.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: July 3, 2007
    Assignee: Rohm and Haas Company
    Inventors: Richard Henry Weese, Chuen-Shyong Chou, Eugene Patrick Dougherty, David John McDonald, Jean Marie Brady
  • Publication number: 20040039123
    Abstract: The present invention provides polymeric compositions having a high polymer size and a low Tg. These novel compositions are useful as plastic additives. Also provided is a method of improving the processing of a matrix resin by adding one or more of the novel polymeric compositions.
    Type: Application
    Filed: May 5, 2003
    Publication date: February 26, 2004
    Inventors: Edward Joseph Troy, David John McDonald, Jane Elizabeth Weier
  • Publication number: 20030214971
    Abstract: A system for mapping dissimilar communication protocols is disclosed. In one embodiment, the system comprises user communication information that spans at least two dissimilar communication networks, a first communication protocol associated with a first communication network, a second communication protocol associated with a second communication network, and a software code segment configured to detect a call setup identifier and a call tear-down identifier associated with the first communication protocol, the software code segment also configured to detect a call setup identifier and call tear-down identifier associated with the second communication protocol, where the call setup identifier and the call tear-down identifier associated with the second communication protocol may occur within a predetermined amount of time before or after the call setup identifier or the call tear-down identifier associated with the first communication protocol.
    Type: Application
    Filed: May 20, 2002
    Publication date: November 20, 2003
    Inventors: David Charles Sheldon, David John McDonald, Douglas John Carson
  • Publication number: 20030199628
    Abstract: Aqueous-form additive systems, and methods of blending the same with a matrix resin, are disclosed whereby acrylic-based impact modifier compositions, butadiene-based impact modifier compositions and acrylic-based processing aids are used in aqueous form without the need for isolation to the traditional powder-form. The aqueous additive systems of the present invention provide a means for the design of novel additive compositions. The aqueous additive systems of the present invention also provide a great degree of flexibility in preparation of matrix resin blends and formulations. Additionally, the aqueous additive systems of the present invention allow for the reduced cost of manufacturing additives and reduced cost in blending matrix resin formulations.
    Type: Application
    Filed: May 15, 2003
    Publication date: October 23, 2003
    Inventors: Richard Henry Weese, Chuen-Shyong Chou, Eugene Patrick Dougherty, David John McDonald, Jean Marie Brady