Patents by Inventor Karan Kerwell

Karan Kerwell 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 of mixing a pharmaceutical solution and mixing system
    Patent number: 11524270
    Abstract: A method of mixing a pharmaceutical solution including adding a gas into an interior compartment of a mix bag to form a headspace. The interior compartment of the mix bag includes a top portion and a bottom portion. The headspace adjacent to the top portion contains gas. The method includes adding a solvent into the mix bag, and establishing a bubble column in the interior compartment by activating a recirculation assembly. The recirculation assembly includes a connecting pathway operably coupled to a recirculation pump. A first end of the connecting pathway is coupled to a top gas recirculation port and a second end is coupled to a bottom gas recirculation port of the mix bag such that the recirculation pump draws the gas from the headspace and delivers the gas to the interior compartment via the bottom gas recirculation port. The method includes adding a solute into the mix bag.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: December 13, 2022
    Assignees: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE SA
    Inventors: William Spencer Hurst, Kent Alan Williams, Donald A. Smith, Michael P. Wehrli, Luis Ernesto Criales Escobar, Jessica Tam, Joseph Edward Bigalke, Gert Najdeni, Karan Kerwell, Lushan Zhou, Michael Imeobong Essien
  • METHOD OF MIXING A PHARMACEUTICAL SOLUTION AND MIXING SYSTEM
    Publication number: 20190329196
    Abstract: A method of mixing a pharmaceutical solution including adding a gas into an interior compartment of a mix bag to form a headspace. The interior compartment of the mix bag includes a top portion and a bottom portion. The headspace adjacent to the top portion contains gas. The method includes adding a solvent into the mix bag, and establishing a bubble column in the interior compartment by activating a recirculation assembly. The recirculation assembly includes a connecting pathway operably coupled to a recirculation pump. A first end of the connecting pathway is coupled to a top gas recirculation port and a second end is coupled to a bottom gas recirculation port of the mix bag such that the recirculation pump draws the gas from the headspace and delivers the gas to the interior compartment via the bottom gas recirculation port. The method includes adding a solute into the mix bag.
    Type: Application
    Filed: April 23, 2019
    Publication date: October 31, 2019
    Inventors: William Spencer Hurst, Kent Alan Williams, Donald A. Smith, Michael P. Wehrli, Luis Ernesto Criales Escobar, Jessica Tam, Joseph Edward Bigalke, Gert Najdeni, Karan Kerwell, Lushan Zhou, Michael Imeobong Essien