Patents by Inventor Jon R. Swanson

Jon R. Swanson 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).

  • 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
  • Toner process control system based on toner developed mass, reflectance density and gloss
    Patent number: 5155530
    Abstract: A method for controlling toner developed mass per unit area in an electrostatic or electrophotographic device includes the steps of: forming a toner image on a printing sheet; measuring a toner density of the toner image on the printing sheet; measuring a gloss of the toner image on the printing sheet; determining a toner developed mass per unit area for the measured gloss and measured toner density; and adjusting a voltage of a developement field in the electrostatic device in accordance with the determined toner developed mass per unit area.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: October 13, 1992
    Assignee: Xerox Corporation
    Inventors: James R. Larson, Jon R. Swanson