Patents by Inventor John H. Nguyen

John H. Nguyen 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: 6880128
    Abstract: An equipment inspecting and evaluating system can be used to inspect and evaluate steam traps by detecting a level of vibrations of each trap and the surface temperature of the housing of that trap. The detected vibration level and temperature are used to determine whether or not steam is leaking through that trap and to what extent steam leakage is. An equipment management system is connected to the inspection and evaluation system by a data transmission cable and receives inspection data of the traps from the inspection and evaluation system. The management system analyzes the received inspection data for computing the number of defective traps, the ratio of defective traps to the entire traps, the loss caused by steam leakage, etc.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: April 12, 2005
    Assignee: TLV Company, Limited
    Inventor: John H. Nguyen
  • Patent number: 6850848
    Abstract: An equipment inspecting and evaluating system can be used to inspect and evaluate steam traps by detecting a level of vibrations of each trap and the surface temperature of the housing of that trap. The detected vibration level and temperature are used to determine whether or not steam is leaking through that trap and to what extent steam leakage is. An equipment management system is connected to the inspection and evaluation system by a data transmission cable and receives inspection data of the traps from the inspection and evaluation system. The management system analyzes the received inspection data for computing the number of defective traps, the ratio of defective traps to the entire traps, the loss caused by steam leakage, etc.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: February 1, 2005
    Assignee: TLV Company, Limited
    Inventors: John H. Nguyen, Hiroshi Emoto
  • Patent number: 6772093
    Abstract: An equipment inspecting and evaluating system can be used to inspect and evaluate steam traps by detecting a level of vibrations of each trap and the surface temperature of the housing of that trap. The detected vibration level and temperature are used to determine whether or not steam is leaking through that trap and to what extent steam leakage is. An equipment management system is connected to the inspection and evaluation system by a data transmission cable and receives inspection data of the traps from the inspection and evaluation system. The management system analyzes the received inspection data for computing the number of defective traps, the ratio of defective traps to the entire traps, the loss caused by steam leakage, etc.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: August 3, 2004
    Assignee: TLV Company, Limited
    Inventors: John H. Nguyen, Hiroshi Emoto
  • Patent number: 6728659
    Abstract: An equipment inspecting and evaluating system can be used to inspect and evaluate steam traps by detecting a level of vibrations of each trap and the surface temperature of the housing of that trap. The detected vibration level and temperature are used to determine whether or not steam is leaking through that trap and to what extent steam leakage is. An equipment management system is connected to the inspection and evaluation system by a data transmission cable and receives inspection data of the traps from the inspection and evaluation system. The management system analyzes the received inspection data for computing the number of defective traps, the ratio of defective traps to the entire traps, the loss caused by steam leakage, etc.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: April 27, 2004
    Assignee: TLV Company, Limited
    Inventors: John H. Nguyen, Hiroshi Emoto
  • Patent number: 6647344
    Abstract: An equipment inspecting and evaluating system can be used to inspect and evaluate steam traps by detecting a level of vibrations of each trap and the surface temperature of the housing of that trap. The detected vibration level and temperature are used to determine whether or not steam is leaking through that trap and to what extent steam leakage is. An equipment management system is connected to the inspection and evaluation system by a data transmission cable and receives inspection data of the traps from the inspection and evaluation system. The management system analyzes the received inspection data for computing the number of defective traps, the ratio of defective traps to the entire traps, the loss caused by steam leakage, etc.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: November 11, 2003
    Assignee: TLV Company, Limited
    Inventor: John H. Nguyen
  • Patent number: 6556894
    Abstract: A host computer is used to enter into a measuring apparatus to be leased, a contracted term of lease and the date when the lease starts, and/or a contracted number of times the measuring apparatus can be used, and the warning time when a warning message should be given. After the warning time, the warning message is displayed. When the contracted term of lease expires or when the measuring apparatus has been used the contracted number of times, a message notifying the user of the expiration of the lease is displayed and/or the functions of the measuring apparatus are disabled.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: April 29, 2003
    Assignee: TLV Company, Ltd.
    Inventor: John H. Nguyen
  • Publication number: 20030065669
    Abstract: Roughly described, a machine-readable protocol database identifies a sequence of workflow tasks for a clinical trial protocol. The sequence of workflow tasks is organized as a graph whose nodes can contain or represent patient contact event objects, with one or more of the tasks assigned to each patient contact event object. The graph also indicates preferred or expected times for a patient to transition from one node to the next, and optionally also indicates a predicted likelihood that different alternative paths will be taken to a common destination node. A problem-solving method automatically extracts the time duration expected or predicted for a patient to traverse each separate phase of the protocol. Such durations are provided to a simulation engine which automatically generates timeline forecasts of patient progress through at least part of the workflow tasks prescribed by the protocol.
    Type: Application
    Filed: October 3, 2001
    Publication date: April 3, 2003
    Applicant: FastTrack Systems, Inc.
    Inventors: Michael G. Kahn, Michael Mischke-Reeds, John H. Nguyen
  • Publication number: 20010007093
    Abstract: An equipment inspecting and evaluating system can be used to inspect and evaluate steam traps by detecting a level of vibrations of each trap and the surface temperature of the housing of that trap. The detected vibration level and temperature are used to determine whether or not steam is leaking through that trap and to what extent steam leakage is. An equipment management system is connected to the inspection and evaluation system by a data transmission cable and receives inspection data of the traps from the inspection and evaluation system. The management system analyzes the received inspection data for computing the number of defective traps, the ratio of defective traps to the entire traps, the loss caused by steam leakage, etc.
    Type: Application
    Filed: January 24, 2001
    Publication date: July 5, 2001
    Inventor: John H. Nguyen
  • Publication number: 20010005819
    Abstract: An equipment inspecting and evaluating system can be used to inspect and evaluate steam traps by detecting a level of vibrations of each trap and the surface temperature of the housing of that trap. The detected vibration level and temperature are used to determine whether or not steam is leaking through that trap and to what extent steam leakage is. An equipment management system is connected to the inspection and evaluation system by a data transmission cable and receives inspection data of the traps from the inspection and evaluation system. The management system analyzes the received inspection data for computing the number of defective traps, the ratio of defective traps to the entire traps, the loss caused by steam leakage, etc.
    Type: Application
    Filed: January 24, 2001
    Publication date: June 28, 2001
    Inventors: John H. Nguyen, Hiroshi Emoto
  • Publication number: 20010002460
    Abstract: An equipment inspecting and evaluating system can be used to inspect and evaluate steam traps by detecting a level of vibrations of each trap and the surface temperature of the housing of that trap. The detected vibration level and temperature are used to determine whether or not steam is leaking through that trap and to what extent steam leakage is. An equipment management system is connected to the inspection and evaluation system by a data transmission cable and receives inspection data of the traps from the inspection and evaluation system. The management system analyzes the received inspection data for computing the number of defective traps, the ratio of defective traps to the entire traps, the loss caused by steam leakage, etc.
    Type: Application
    Filed: January 24, 2001
    Publication date: May 31, 2001
    Inventors: John H. Nguyen, Hiroshi Emoto
  • Patent number: D397754
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: September 1, 1998
    Assignee: John H. Nguyen
    Inventor: John H. Nguyen