Patents Assigned to Patent Development and Investment S.A.
  • Patent number: 5479944
    Abstract: Devices for improving nasal breathing and to nasal drug delivery devices having two end portions of a resilient material in the form of relatively thin tabs, perferably having a gentle curvature, interconnected by a resilient member. Upon bending of the connecting member, the two end tabs can be positioned in respective nostrils where they will be biased outwardly against the nasal side walls, the outward biasing force being sufficient to locate the device in the nose and to dilate the anterior part of each nasal cavity by an amount to improve nasal breathing. No part of the device is grippingly engaged with the septum and a substantial free passage for air flow remains between the septum wall and the nasal side wall-contacting face of each end tab.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: January 2, 1996
    Assignee: Patent Development & Investment S.A.
    Inventor: Bjorn Petruson
  • Patent number: RE35408
    Abstract: Devices for improving nasal breathing and to nasal drug delivery devices having two end portions of a resilient material in the form of relatively thin tabs, preferably having a gentle curvature, interconnected by a resilient member. Upon bending of the connecting member, the two end tabs can be positioned in respective nostrils where they will be biased outwardly against the nasal side walls, the outward biasing force being sufficient to locate the device in the nose and to dilate the anterior part of each nasal cavity by an amount to improve nasal breathing. No part of the device is grippingly engaged with the septum and a substantial free passage for air flow remains between the septum wall and the nasal side wall-contacting face of each end tab.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: December 24, 1996
    Assignee: Patent Development & Investment S.A.
    Inventor: Bjorn Petruson
  • Patent number: D380264
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: June 24, 1997
    Assignee: Patent Development and Investment S.A.
    Inventor: Bjorn Petruson