Patents by Inventor Samuel O. Sowemimo-Coker

Samuel O. Sowemimo-Coker 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 inactivating non-enveloped viral contaminants with a photosensitizer by increasing viral permeability to the photosensitizer
    Patent number: 6251644
    Abstract: A method is presented for inactivating non-enveloped viruses that may be contaminating a biological solution or suspension by mixing the solution or suspension with a photosensitizer to form a mixture, adjusting the operating conditions of the mixture so as to increase the permeability of the viruses to the photosensitizer, and then irradiating the adjusted mixture.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: June 26, 2001
    Assignee: Baxter International, Inc.
    Inventors: Samuel O. Sowemimo-Coker, Raymond P. Goodrich, Jr.
  • Method of inactivation of viral and bacterial blood contaminants
    Patent number: 6235508
    Abstract: Viral and bacterial contaminants present in biological solutions are inactivated by mixing one of a novel class of photosensitizer with said solution and irradiating the mixture. Quinoline and quinolone compounds are useful as photosensitizers in this method. With certain photosensitizers a blocking agent may also be employed.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: May 22, 2001
    Assignee: Baxter International Inc.
    Inventors: Samuel O. Sowemimo-Coker, Nagender Yerram, Raymond P. Goodrich, Jr., Matthew S. Platz
  • Method of inactivation of viral and bacterial blood contaminants
    Patent number: 6169109
    Abstract: Viral and bacterial contaminants present in biological solutions are inactivated by mixing one of a novel class of photosensitizer with said solution and irradiating the mixture.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: January 2, 2001
    Assignee: Baxter International Inc.
    Inventors: Sang Chul Park, Raymond P. Goodrich, Jr., Nagender Yerram, Samuel O. Sowemimo-Coker, Matthew S. Platz, Brian M. Aquila
  • Method of inactivation of viral and bacterial blood contaminants
    Patent number: 5955256
    Abstract: Viral, bacterial and parasitic contaminants in blood and cell culture containing compositions are inactivated by adding a photosensitizer and a blocking agent to the composition and irradiating the resulting mixture with electromagnetic radiation. Blocking agents reduce photolysis of the photosensitizer by mechanisms not involving the quenching of reactive oxygen species. The blocking agents reduce photolysis which occurs by ring opening. Preferred photosensitizers are quinoline or quinolone.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 21, 1999
    Assignee: Baxter International Inc.
    Inventors: Samuel O. Sowemimo-Coker, Nagender Yerram, Raymond P. Goodrich, Jr., Matthew S. Platz
  • Method of inactivation of viral and bacterial blood contaminants
    Patent number: 5869701
    Abstract: Viral and bacterial contaminants present in biological solutions are inactivated by mixing one of a novel class of photosensitizer with said solution and irradiating the mixture.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: February 9, 1999
    Assignee: Baxter International Inc.
    Inventors: Sang Chul Park, Raymond P. Goodrich, Jr., Nagender Yerram, Samuel O. Sowemimo-Coker, Matthew S. Platz, Brian M. Aquila
  • Method of inactivation of viral and bacterial blood contaminants
    Patent number: 5789601
    Abstract: Viral and bacterial contaminants present in biological solutions are inactivated by mixing one of a novel class of photosensitizer with said solution and irradiating the mixture.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: August 4, 1998
    Assignee: Baxter International Inc.
    Inventors: Sang Chul Park, Raymond P. Goodrich, Jr., Nagender Yerram, Samuel O. Sowemimo-Coker, Matthew S. Platz, Brian M. Aquila
  • Photoinactivation of viral and bacterial blood contaminants using halogenated coumarins
    Patent number: 5516629
    Abstract: A method for photoinactivating viral and/or bacterial contaminants in blood, blood products or cell cultures is presented. The blood, blood product or cell culture is mixed with an halogenated coumarin sensitizer and irradiated with UV light to inactivate the viral and/or bacterial contaminants.
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: May 14, 1996
    Assignee: Cryopharm Corporation
    Inventors: Sang C. Park, Raymond P. Goodrich, Jr., Nagender Yerram, Samuel O. Sowemimo-Coker, Matthew S. Platz, Brian M. Aquila