Patents by Inventor John L. Griffith

John L. Griffith 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: 20150033793
    Abstract: A process and system for production of liquefied natural gas (LNG) from natural gas. The natural gas is first partially purified by removal of water and other contaminants, followed by partial chilling to freeze some contaminants and to allow for production of a purge stream to remove other contaminants. These contaminants may be removed from the stream. The process has advantages of low cost and improved removal of contaminants.
    Type: Application
    Filed: July 23, 2014
    Publication date: February 5, 2015
    Inventor: John L. Griffiths
  • Publication number: 20030032871
    Abstract: An apparatus for monitoring the medical condition of a patient, the apparatus including a medical instrument which during use monitors one or more clinical features of the patient; a predictive instrument arranged to receive output from the medical instrument and programmed to compute a probability of a medical outcome or diagnosis based on the monitored one or more clinical features, said predictive instrument further programmed to use a model to compute said probability, said model being characterized by a set of weights the values of which affect the computed probability; and an interface through which a user enters an input characterizing at least one of a physical setting in which the predictive instrument is to be used and a sub-population of patients on which the predictive instrument is to be used, wherein said characterizing input causes a corresponding one of a plurality of data sets to be used in said model to establish a value for one or more of said weights in said set of weights.
    Type: Application
    Filed: July 17, 2002
    Publication date: February 13, 2003
    Applicant: New England Medical Center Hospitals, Inc.
    Inventors: Harry P. Selker, John L. Griffith
  • Patent number: 6067466
    Abstract: A method for evaluating a medical condition of a patient including the steps of monitoring one or more clinical features of a patient; based on the monitored features, computing a primary probability of a medical outcome or diagnosis; computing a plurality of conditional probabilities for a selected diagnostic test, the computed conditional probabilities including a first probability of the medical outcome or diagnosis assuming the selected diagnostic test produces a first outcome and a second probability of the medical outcome or diagnosis assuming the selected diagnostic test produces a second outcome; and displaying the computed primary probability as well as the plurality of computed conditional probabilities to a user as an aid to determining whether to administer the selected diagnostic test to the patient.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: May 23, 2000
    Assignee: New England Medical Center Hospitals, Inc.
    Inventors: Harry P. Selker, John L. Griffith, Joni R. Beshansky
  • Patent number: 5724983
    Abstract: A method for continuously monitoring the medical condition of a patient, the method including the steps of continuously monitoring one or more clinical features of the patient; periodically computing a probability of a medical outcome or diagnosis based upon the continuously monitored one or more clinical features; from the periodically computed probability of a medical outcome or diagnosis, computing a change-of-condition measure; periodically comparing the change-in-condition measure to a threshold value; and if any computed change-in-condition measure exceeds the threshold value, generating an alarm notification.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: March 10, 1998
    Assignee: New England Center Hospitals, Inc.
    Inventors: Harry P. Selker, John L. Griffith
  • Patent number: 5718233
    Abstract: An instrument for continuously monitoring the condition of a patient who has a cardiovascular disease, the instrument including an electrocardiograph; a waveform analyzer which analyzes a current segment of an ECG waveform; a computer receiving output from the waveform analyzer; and a control module. The computer is programmed to complete a monitoring cycle in which the computer uses the output from the waveform analyzer to compute a probability of a life threatening cardiac condition based upon the current segment of the patient's ECG waveform. The control module causes the computer to periodically repeat the monitoring cycle and for each repetition of said monitoring cycle to compute a change-of-condition measure, wherein the change-of-condition measure is calculated by subtracting a computed probability for a previous monitoring cycle from the computed probability for the current monitoring cycle.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: February 17, 1998
    Assignee: New England Medical Center Hospitals, Inc.
    Inventors: Harry P. Selker, John L. Griffith
  • Patent number: 5501229
    Abstract: An instrument for continuously monitoring the condition of a patient who has a cardiovascular disease, the instrument including an electrocardiograph; a waveform analyzer which analyzes a current segment of an ECG waveform; a computer receiving output from the waveform analyzer; and a control module. The computer is programmed to complete a monitoring cycle in which the computer uses the output from the waveform analyzer to compute a probability of a life threatening cardiac condition based upon the current segment of the patient's ECG waveform. The control module causes the computer to periodically repeat the monitoring cycle and for each repetition of said monitoring cycle to compute a change-of-condition measure, wherein the change-of-condition measure is calculated by subtracting a computed probability for a previous monitoring cycle from the computed probability for the current monitoring cycle.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: March 26, 1996
    Assignee: New England Medical Center Hospital
    Inventors: Harry P. Selker, John L. Griffith