Patents by Inventor Sigmund J. Lofstedt

Sigmund J. Lofstedt 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 for drug administration
    Patent number: 5116311
    Abstract: A new method for administration of pharmacological solutions into the nasal cavity whereby the patient's head is being bent forward 55.degree.-90.degree. from an upright position as well as a device for use in the administration. The method makes it possible to irrigate or treat the whole or nearly the whole mucous membrane in the nasal cavity with solutions or suspensions without any risk for their reaching the digestive tract through the pharynx.
    Type: Grant
    Filed: October 25, 1990
    Date of Patent: May 26, 1992
    Inventor: Sigmund J. Lofstedt