Patents by Inventor David E. O'Brien

David E. O'Brien 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: 20240100296
    Abstract: A package for a medical device such as an intermittent catheter has a case and a cap connected by threads. The case includes a hollow tube which is closed at one end and open at the other. A shoulder is formed near one end of the case. Above the shoulder is a cylindrical ferrule that includes external threads. The cap has internal threads selectably engageable with the threads on the ferrule to form a liquid-tight seal between the cap and case when the cap is installed on the case.
    Type: Application
    Filed: December 5, 2023
    Publication date: March 28, 2024
    Inventors: Daniel E. O'Brien, Vincent Naughton, Martin McMenamin, Joseph N. Hanley, David A. Knauz, Martin P. Creaven, Stephen Collum, Jeanne E. Lee, Siobhan Duffy, Marine Veronique Germaine Richard, Eugene Canavan, Daniel A. March
  • Publication number: 20240082815
    Abstract: In some embodiments, the present disclosure relates to a system. The system includes a substrate and a fluid capture material formed on one or more surfaces of the substrate. The fluid capture material includes a sorbent material that binds one or more fluids, the one or more fluids comprising water, carbon dioxide, sulfur oxides, or a combination thereof. The fluid capture material also includes one or more binder materials, wherein the binder material is at least partially cross-linked.
    Type: Application
    Filed: September 14, 2022
    Publication date: March 14, 2024
    Inventors: Michael Joseph O'Brien, David Roger Moore, William Christopher Alberts, Jingjing Yang, Mark Daniel Doherty, Mark D. Buckley, Jack E. Howson, Bryce E. Lipinski
  • Patent number: 7545224
    Abstract: A low cost, low phase noise microwave synthesizer includes a DDS modulation circuit and a phase-locked loop. The DDS modulation circuit modulates the output of a DDS to a high frequency. The phase-locked loop downconverts the DDS output and locks the downconverted signal to a relatively low frequency, fixed reference.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: June 9, 2009
    Assignee: Teradyne, Inc.
    Inventors: Colin Ka Ho Chow, David E. O'Brien
  • Publication number: 20080252384
    Abstract: A low cost, low phase noise microwave synthesizer includes a DDS modulation circuit and a phase-locked loop. The DDS modulation circuit modulates the output of a DDS to a high frequency. The phase-locked loop downconverts the DDS output and locks the downconverted signal to a relatively low frequency, fixed reference.
    Type: Application
    Filed: April 12, 2007
    Publication date: October 16, 2008
    Inventors: Colin Ka Ho Chow, David E. O'Brien
  • Patent number: 6356129
    Abstract: A timing circuit for ATE generates an output clock from an input clock and controls output pulse width. The timing circuit includes a differential driver having an input that receives the input clock, and having inverting and non-inverting outputs. The inverting output is coupled to a first phase-locked loop, and the non-inverting output is coupled to a second phase-locked loop. The first and second phase-locked loops respectively generate first and second clocks in response to respective rising and falling edges of the input clock. A combiner circuit converts the first and second clocks into narrow pulse trains, and the pulse trains respectively operate SET and RESET inputs of a SET/RESET flip-flop. The SET/RESET flip-flop generates an output clock having rising edges responsive to rising edges of the input clock, and falling edges responsive to falling edges of the input clock.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: March 12, 2002
    Assignee: Teradyne, Inc.
    Inventors: David E. O'Brien, Timothy W. Sheen, Marc R. Hutner, Michael A. Mittelbrunn, Abdelkebir Sabil