Patents by Inventor David P. Hearst

David P. Hearst 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).

  • Device and method for photoactivation
    Patent number: 5854967
    Abstract: A device comprising a light source, a sample holder and a temperature control chamber. The sample holder supports the vessels in a fixed relationship relative to the light source. The temperature control chamber surrounds the sample holder and vessels, so that a temperature control fluid may be passed around the sample vessels effectively maintaining the temperature of the sample vessels within a desired temperature range.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: December 29, 1998
    Assignee: Cerus Corporation
    Inventors: David P. Hearst, George D. Cimino, John E. Hearst, Stephen T. Isaacs
  • Device and method for photoactivation
    Patent number: 5683661
    Abstract: A device comprising a light source, a sample holder and a temperature control chamber. The sample holder supports the vessels in a fixed relationship relative to the light source. The temperature control chamber surrounds the sample holder and vessels, so that a temperature control fluid may be passed around the sample vessels effectively maintaining the temperature of the sample vessels within a desired temperature range.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 4, 1997
    Assignee: Cerus Corporation
    Inventors: David P. Hearst, George D. Cimino, John E. Hearst, Stephen T. Isaacs
  • Method for photoactivation
    Patent number: 5503721
    Abstract: A method for activating photoreactive compounds by supporting sample vessels containing a photoreactive compound at a selected temperature and irradiating the sample vessels while holding the sample vessels at a fixed relationship with the irradiating source so as to uniformly irradiate the compound.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: April 2, 1996
    Assignee: HRI Research, Inc.
    Inventors: David P. Hearst, George D. Cimino, John E. Hearst, Stephen T. Isaacs
  • Device and method for photoactivation
    Patent number: 5184020
    Abstract: A device comprising a light source, a sample holder and a temperature control chamber. The sample holder supports the vessels in a fixed relationship relative to the light source. The temperature control chamber surrounds the sample holder and vessels, so that a temperature control fluid may be passed around the sample vessels effectively maintaining the temperature of the sample vessels within a desired temperature range.
    Type: Grant
    Filed: October 26, 1989
    Date of Patent: February 2, 1993
    Inventors: David P. Hearst, George D. Cimino, John E. Hearst, Stephen T. Isaacs