Patents by Inventor Christopher Gordon Estkowski

Christopher Gordon Estkowski 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).

  • Respiratory Device Filter
    Publication number: 20130133663
    Abstract: A respiratory device filter (10) comprises a housing (12) having a mouthpiece (16) and a body (18). The housing (12) defines an inner sidewall (34) and a conical filter (14) is disposed within the housing (12). The conical filter (14) includes a first end that defines an apex (42) and a second end that defines an opening (44). An apex retention member (46) extends from the inner sidewall (34) and is secured to the apex (42) of the conical filter (14).
    Type: Application
    Filed: May 11, 2011
    Publication date: May 30, 2013
    Applicant: DALHOUSIE UNIVERSITY
    Inventors: Geoffrey N. Maksym, Ewan Kearney MacKenzie, Christopher Gordon Estkowski, Guy Drapeau
  • Respiratory device filter
    Patent number: D692555
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: October 29, 2013
    Assignee: Dalhousie University
    Inventors: Geoffrey Nicholas Maksym, Ewan Kearney MacKenzie, Christopher Gordon Estkowski, Guy Drapeau