Patents by Inventor Patricia A. McClean

Patricia A. McClean 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).

  • Method and apparatus for the measurement of components of exhaled breath in humans
    Patent number: 6010459
    Abstract: Methods and related equipment for measuring components of exhaled breath of a subject are provided which involve causing the subject to exhale into an appropriate apparatus for receiving exhaled breath; increasing the pressure in the mouth of the subject to a level sufficient to close the vellum and isolate the nasopharynx during exhalation; a means of monitoring nasal CO.sub.2 to conrirm vellum closure; and measuring the level of one or more components of the collected exhaled breath. Endogenous nitric oxide is a preferred component of exhaled breath for monitoring and analysis.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: January 4, 2000
    Inventors: Philip E. Silkoff, Patricia A. McClean
  • Method and apparatus for the measurement of exhaled nitric oxide in humans
    Patent number: 5795787
    Abstract: An apparatus for measuring nitric oxide exhaled from the lungs of a person comprises(a) a conduit for receiving the air exhaled by the person;(b) a resistor for increasing the pressure in the mouth of the person during exhalation to close the nasopharynx and to maintain a constant flow rate of said air exhaled by the person; and,(c) measuring means for measuring the nitric oxide concentration in said exhaled air.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: August 18, 1998
    Inventors: Philip Silkoff, Patricia McClean