Patents by Inventor John Bruins

John Bruins 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).

  • Training device
    Patent number: 10665132
    Abstract: The present invention provides a training device for training a user to use a pressurised metered dose inhaler (PMDI). The device comprises a body, air expulsion means (e.g. bellows) for expelling air along an air flow path and an actuator for actuation of the air expulsion means. The air flow path comprises a restriction such that upon expulsion of air along the air flow path, an audible signal is generated. The audible signal mimics that generated during use of a PMDI.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: May 26, 2020
    Assignee: CLEMENT CLARKE INTERNATIONAL LIMITED
    Inventors: Ronald John Bruin, David William Spencer, Mark Jeremy Sanders
  • Training Device
    Publication number: 20160049096
    Abstract: The present invention provides a training device for training a user to use a pressurised metered dose inhaler (PMDI). The device comprises a body, air expulsion means (e.g. bellows) for expelling air along an air flow path and an actuator for actuation of the air expulsion means. The air flow path comprises a restriction such that upon expulsion of air along the air flow path, an audible signal is generated. The audible signal mimics that generated during use of a PMDI.
    Type: Application
    Filed: April 11, 2014
    Publication date: February 18, 2016
    Inventors: Ronald John Bruin, David William Spencer, Mark Jeremy Sanders
  • Enzyme immunoassay with two-part solution of tetramethylbenzidine as chromogen
    Patent number: 4503143
    Abstract: Colorimetric detection of bindable substances such as antibodies and antigens using chromogens of improved sensitivity and stability. The chromogens take the form of activated solutions containing tetramethylbenzidine or water soluble derivatives of tetramethylbenzidine. Such chromogens are of particular use in home testing applications for detection of antigens such as human chorionic gonadotropin, human luteinizing hormone, and gonococcus bacteria, as well as the detection of antibodies for these substances.
    Type: Grant
    Filed: August 20, 1982
    Date of Patent: March 5, 1985
    Assignee: BTC Diagnostics Limited Partnership
    Inventors: Bego Gerber, Elliott Block, Izak Bahar, Walter D. Cantarow, Mary Coseo, Cheryl Eaton, Wendy Jones, Patricia Kovac, John Bruins