Patents by Inventor Charles F. Flowers, Jr.

Charles F. Flowers, Jr. 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).

  • Active/passive immunization of the internal female reproductive organs
    Patent number: 4756907
    Abstract: Antibody or antigen containing microparticles for the active or passive immunization of the internal female reproductive organs, comprising: microparticles of an antigen or antibody incorporated in a matrix material which is biocompatible and biologically degradable, said microparticles capable of being transported after deposition in the vagina by the natural transport mechanism of the internal female reproductive organs across the cervix into the uterus.
    Type: Grant
    Filed: January 24, 1986
    Date of Patent: July 12, 1988
    Assignee: Stolle Research & Development Corp.
    Inventors: Lee R. Beck, Charles F. Flowers, Jr., Donald R. Cowsar, Albert C. Tanquary
  • Active/passive immunization of the internal female reproductive organs
    Patent number: 4585651
    Abstract: Antibody or antigen containing microparticles for the active or passive immunization of the internal female reproductive organs, comprising: microparticles of an antigen or antibody incorporated in a matrix material which is biocompatible and biologically degradable, said microparticles capable of being transported after deposition in the vagina by the natural transport mechanism of the internal female reproductive organs across the cervix into the uterus.
    Type: Grant
    Filed: December 18, 1980
    Date of Patent: April 29, 1986
    Assignee: Stolle Research & Development Corporation
    Inventors: Lee R. Beck, Charles F. Flowers, Jr., Donald R. Cowsar, Albert C. Tanquary