Patents by Inventor Donna M. Marcera

Donna M. Marcera 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).

  • Sterile filtered nanoparticulate formulations of budesonide and beclomethasone having tyloxapol as a surface stabilizer
    Publication number: 20030129242
    Abstract: The invention relates to sterile filtered nanoparticulate compositions of beclomethasone and/or budesonide having as a surface stabilizer tyloxapol and, optionally, one or more secondary surface stabilizers adsorbed onto the surfaces thereof. The nanoparticulate compositions have an optimal effective average particle size of less than about 150 nm.
    Type: Application
    Filed: January 4, 2002
    Publication date: July 10, 2003
    Inventors: H. William Bosch, Donna M. Marcera, Kevin D. Ostrander, Niels P. Ryde, Douglas A. White
  • Process of preparing x-ray contrast compositions containing nanoparticles
    Patent number: 5543133
    Abstract: A process of preparing nanoparticulate contrast agents comprising the steps of:preparing a premix of the contrast agent and a surface modifier; andsubjecting the premix to mechanical means to reduce the particle size of the contrast agent, the mechanical means producing shear, impact, cavitation and attrition.
    Type: Grant
    Filed: February 14, 1995
    Date of Patent: August 6, 1996
    Assignee: NanoSystems L.L.C.
    Inventors: Jon R. Swanson, H. William Bosch, Kathleen J. Illig, Donna M. Marcera, Ronald L. Mueller
  • Process for preparing therapeutic compositions containing nanoparticles
    Patent number: 5510118
    Abstract: A process of preparing nanoparticulate drug substances comprising the steps of: preparing a premix of the drug substance and a surface modifier, and subjecting the premix to mechanical means to reduce the particle size of the drug substance, the mechanical means producing shear, impact, cavitation and attrition.
    Type: Grant
    Filed: February 14, 1995
    Date of Patent: April 23, 1996
    Assignee: NanoSystems LLC
    Inventors: H. William Bosch, Donna M. Marcera, Ronald L. Mueller, Jon R. Swanson, Dinesh S. Mishra