Patents by Inventor Silvia Weitzel

Silvia Weitzel 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).

  • PROPELLANT-FREE AEROSOL FORMULATION FOR INHALATION
    Publication number: 20140228397
    Abstract: The present invention relates to propellant-free aerosol formulations for inhalation containing ipratropium bromide and salbutamol.
    Type: Application
    Filed: November 22, 2013
    Publication date: August 14, 2014
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventor: Silvia Weitzel