Patents by Inventor Roger Paul Charles Cavallo

Roger Paul Charles Cavallo 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).

  • Spirometric device
    Patent number: 4078554
    Abstract: A spirometric device for connection to the respiratory piping system of a patient and wherein a delivery pickup system is situatable on an exhalation branch of the system. The signals transmitted by a pressure pickup included in the device and situated on the respiratory system and those transmitted by the delivery pickup are led to a computing and measuring assembly which integrates the delivery signals while correcting these as a function of the pressure variations and/or of the errors caused by the gas contained in the respiratory system.
    Type: Grant
    Filed: September 15, 1976
    Date of Patent: March 14, 1978
    Assignee: Synthelabo
    Inventors: Andre Emmanuel Le Maitre, Roger Paul Charles Cavallo