Patents by Inventor John Lomans

John Lomans 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 for purification and isolation of estrogens
    Patent number: 10143938
    Abstract: The present application relates to a method for obtaining a mixture of estrogens from the pregnant mare's urine.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: December 4, 2018
    Assignee: DR. REDDY'S LABORATORIES LTD.
    Inventors: Chandrashaker Akula, John Lomans, Madhukiran Tummidi, Prashant Anil Tatake
  • PROCESS FOR PURIFICATION AND ISOLATION OF ESTROGENS
    Publication number: 20160375378
    Abstract: The present application relates to a method for obtaining a mixture of estrogens from the pregnant mare's urine.
    Type: Application
    Filed: September 12, 2016
    Publication date: December 29, 2016
    Inventors: Chandrashaker Akula, John Lomans, Madhukiran Tummidi, Prashant Anil Tatake
  • PROCESS FOR PURIFICATION AND ISOLATION OF ESTROGENS
    Publication number: 20140371180
    Abstract: The present application relates to a method for obtaining a mixture of estrogens from the pregnant mare's urine.
    Type: Application
    Filed: June 13, 2014
    Publication date: December 18, 2014
    Inventors: Chandrashaker Akula, John Lomans, Madhukiran Tummidi, Prashant Anil Tatake
  • Steroid extraction process from urine sources
    Patent number: 8349819
    Abstract: A process in which urine is optionally filtered to remove solid extraneous matter and optionally treated so as to reduce the phenolic content of the urine to give and the resulting fluid is then subjected to a solid extraction of the major concentration steroids content therefrom by a first suitable resin (to yield a first resin laden with major concentration steroids and a minor concentration steroid laden first liquid remainder). The minor concentration steroid liquid remainder is subjected to a solid extraction of the minor concentration steroid content therefrom by a second suitable resin (to yield a second resin laden with minor concentration steroids and a second liquid remainder). The first and second resins laden with their respective steroids are then eluted and the eluates are collected separately and optionally subjected to further purification and chromatographic separations, with each resulting separate collection being analyzed for the steroid content thereof.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: January 8, 2013
    Assignee: Dr. Reddy's Laboratories New York, Inc.
    Inventors: John Lomans, Carmen Leiva-paredes
  • Steroid extraction process from urine sources
    Publication number: 20050164998
    Abstract: A process in which urine is optionally filtered to remove solid extraneous matter and optionally treated so as to reduce the phenolic content of the urine to give and the resulting fluid is then subjected to a solid extraction of the major concentration steroids content therefrom by a first suitable resin (to yield a first resin laden with major concentration steroids and a minor concentration steroid laden first liquid remainder). The minor concentration steroid liquid remainder is subjected to a solid extraction of the minor concentration steroid content therefrom by a second suitable resin (to yield a second resin laden with minor concentration steroids and a second liquid remainder). The first and second resins laden with their respective steroids are then eluted and the eluates are collected separately and optionally subjected to further purification and chromatographic separations, with each resulting separate collection being analyzed for the steroid content thereof.
    Type: Application
    Filed: February 10, 2005
    Publication date: July 28, 2005
    Inventors: John Lomans, Carmen Leiva-paredes
  • 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
  • Process for isolating conjugated estrogens
    Publication number: 20040072812
    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: Application
    Filed: October 9, 2002
    Publication date: April 15, 2004
    Inventors: John Lomans, Carmen Leiva-Paredes