Patents Assigned to APR LLC
  • Process for isolating conjugated estrogens
    Patent number: 6855704
    Abstract: The present invention relates to a process for extracting conjugated estrogens from pregnant mare urine. The present invention further relates to a process for obtaining a natural mixture of conjugated estrogens. The mixture of conjugated estrogens can be used to prepare products for estrogen replacement therapy or hormone replacement therapy.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: February 15, 2005
    Assignee: APR LLC
    Inventors: John Lomans, Carmen Leiva-Paredes