Patents Represented by Attorney, Agent or Law Firm Bob Sprague
  • Process for making chemically stable C-17/21 OH 20-ketosteroid aerosol products
    Patent number: 6610273
    Abstract: A medicinal aerosol steroid solution formulation product with enhanced chemical stability. The steroid is a 20-ketosteroid having an OH group at the C-17 or C-21 position and the aerosol container has a non-metal interior surface which has been found to reduce chemical degradation of such steroids.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: August 26, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Zheng Z. Wu, Nayna Govind, Peter R. Johnson