Patents by Inventor John Waser

John Waser 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).

  • Process and device for aerosol generation for pulmonary ventilation scintigraphy
    Patent number: 5139016
    Abstract: A disposable shielded device for producing aerosol having particles less than 2 microns in size from an aqueous colloidal suspension obtained from human serum albumen and labelled with .sup.99m Technetium for use in scintigraphic imaging of pulmonary function. The device includes a nebulizing chamber having a membrane of 0.1 mm to about 0.01 mm in thickness and 40 mm to about 50 mm in diameter which nebulizes the labelled substance in response to ultrasound waves transmitted thereto.
    Type: Grant
    Filed: December 29, 1989
    Date of Patent: August 18, 1992
    Assignee: Sorin Biomedica S.p.A.
    Inventor: John Waser