Patents by Inventor Robert R. Hogan

Robert R. Hogan 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).

  • Method for the purification of prostaglandins
    Patent number: 9353055
    Abstract: The present invention provides a method for the purification of a prostaglandin by supercritical fluid chromatography, said method comprising the use of a stationary phase and a mobile phase comprising carbon dioxide, provided that when the stationary phase is unmodified silica gel, the prostaglandin is not luprostiol. The invention also provides prostaglandins obtainable by the method.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: May 31, 2016
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Robert R. Hogan, Ronald Rossi
  • METHOD FOR THE PURIFICATION OF PROSTAGLANDINS
    Publication number: 20150126764
    Abstract: The present invention provides a method for the purification of a prostaglandin by supercritical fluid chromatography, said method comprising the use of a stationary phase and a mobile phase comprising carbon dioxide, provided that when the stationary phase is unmodified silica gel, the prostaglandin is not luprostiol. The invention also provides prostaglandins obtainable by the method.
    Type: Application
    Filed: January 12, 2015
    Publication date: May 7, 2015
    Inventors: Robert R. HOGAN, Ronald Rossi
  • Method for the purification of prostaglandins
    Patent number: 8957240
    Abstract: The present invention provides a method for the purification of a prostaglandin by supercritical fluid chromatography, said method comprising the use of a stationary phase and a mobile phase comprising carbon dioxide, provided that when the stationary phase is unmodified silica gel, the prostaglandin is not luprostiol. The invention also provides prostaglandins obtainable by the method.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: February 17, 2015
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Robert R. Hogan, Ronald Rossi
  • METHOD FOR THE PURIFICATION OF PROSTAGLANDINS
    Publication number: 20130317249
    Abstract: The present invention provides a method for the purification of a prostaglandin by supercritical fluid chromatography, said method comprising the use of a stationary phase and a mobile phase comprising carbon dioxide, provided that when the stationary phase is unmodified silica gel, the prostaglandin is not luprostiol. The invention also provides prostaglandins obtainable by the method.
    Type: Application
    Filed: July 29, 2013
    Publication date: November 28, 2013
    Applicant: Johnson Matthey Public Limited Company
    Inventors: Robert R. Hogan, Ronald Rossi
  • Method for the purification of prostaglandins
    Patent number: 8519178
    Abstract: The present invention provides a method for the purification of a prostaglandin by supercritical fluid chromatography, said method comprising the use of a stationary phase and a mobile phase comprising carbon dioxide, provided that when the stationary phase is unmodified silica gel, the prostaglandin is not luprostiol. The invention also provides prostaglandins obtainable by the method.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: August 27, 2013
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Robert R. Hogan, Ronald Rossi
  • METHOD FOR THE PURIFICATION OF PROSTAGLANDINS
    Publication number: 20100324313
    Abstract: The present invention provides a method for the purification of a prostaglandin by supercritical fluid chromatography, said method comprising the use of a stationary phase and a mobile phase comprising carbon dioxide, provided that when the stationary phase is unmodified silica gel, the prostaglandin is not luprostiol. The invention also provides prostaglandins obtainable by the method.
    Type: Application
    Filed: June 22, 2010
    Publication date: December 23, 2010
    Applicant: Johnson Matthey Public Limited Company
    Inventors: Robert R. Hogan, Ronald Rossi
  • Air spring assembly
    Patent number: 7370850
    Abstract: An air spring assembly for a vehicle includes a spring seat adapted to be secured to vehicle structure of the vehicle. The spring seat has a post extending therefrom. The air spring assembly includes an inflatable air spring having a mounting cap for attachment to the spring seat. The mounting cap has a cavity extending therein to receive the post. The air spring assembly further includes a retaining member extending through the mounting cap and over the post to prevent the post from exiting the cavity to attach the mounting cap to the spring seat.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: May 13, 2008
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Robert R. Hogan, Yunjun Li