Patents by Inventor LIoyd Johnson

LIoyd Johnson 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).

  • Control of process humidity to produce large, porous particles
    Publication number: 20050058607
    Abstract: Spray dried particles having specified aerodynamic characteristics are produced by atomizing a liquid feed and contacting the liquid feed with a drying gas, such as, for example, air or nitrogen. The humidity of the drying gas is controlled to a value, expressed, for instance, as dew point, which is known to produce particles having a specified tap density or aerodynamic diameter. Particles having a volume median geometric diameter greater than about 5 microns and a tap density less than about 0.4 g/cm3 are preferred.
    Type: Application
    Filed: October 29, 2004
    Publication date: March 17, 2005
    Applicants: Avanced Inhalation Research, Inc., The Penn State Research Foundation
    Inventors: Donghao Chen, Richard Batycky, LIoyd Johnson, Jeffrey Mintzes