Patents by Inventor Richard G. Hamilton

Richard G. Hamilton 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: 4971221
    Abstract: A device for monitoring the dispensing of drugs to a patient is disclosed. This device includes a detector which determines the actual physical delivery of the drug dosage to the patient. This eliminates ambiguities associated with devices in the art which only monitor inferentially the dispensing of the drug dosage to the patient. The detector can include an optical sensor which notes the physical passage of the drug dosage through a dispensing port to the patient.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: November 20, 1990
    Assignee: Aprex Corporation
    Inventors: John Urquhart, Richard G. Hamilton
  • Patent number: 4939705
    Abstract: A device for detecting the dispensing of drugs from a container in a way which eliminates false detection events due to mishandling of the container is disclosed. The device includes a container which may be opened and closed. It also contains a means for detecting the opening and separately detecting the closing of the container as well as means for measuring the time between these events and comparing this elapsed time to a predetermined standard indicative of drug dispensing event. The times of proper drug dispensing events are stored in the device for use by the health care professional following the patient's drug dosing compliance. Other opening and closing intervals which fall outside this time range give rise to an alternative response. They may be recorded with a notation of their probable error or they may be disregarded.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: July 3, 1990
    Assignee: Aprex Corporation
    Inventors: Richard G. Hamilton, David M. Liu
  • Patent number: 4546770
    Abstract: A pulmonary monitor for measuring a complex set of variables utilizing a group of three pushbuttons arranged to operate in hierarchical a hierarchical pattern for facilitating operator control of the functions of the monitor.
    Type: Grant
    Filed: March 4, 1983
    Date of Patent: October 15, 1985
    Assignee: Critikon
    Inventors: Joseph E. Schlessinger, Richard G. Hamilton
  • Patent number: 4413632
    Abstract: A pulmonary monitor for measuring a complex set of variables utilizing a group of three pushbuttons arranged to operate in a hierarchical pattern for facilitating operator control of the functions of the monitor.
    Type: Grant
    Filed: October 9, 1979
    Date of Patent: November 8, 1983
    Assignee: Critikon, Inc.
    Inventors: Joseph E. Schlessinger, Richard G. Hamilton
  • Patent number: D282181
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: January 14, 1986
    Assignee: Colonial Art Company, Inc.
    Inventor: Richard G. Hamilton