Patents by Inventor John Tessman

John Tessman 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).

  • Proralen inactivation of microorganisms and psoralen removal
    Patent number: 5709991
    Abstract: Methods are disclosed for photodecontamination to inactivate microorganisms in platelet preparations and for removal of psoralen after photodecontamination. Removal is achieved by contacting the psoralen with a psoralen-binding polymer.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 20, 1998
    Assignee: Cerus Corporation
    Inventors: Lily Lin, Laurence Corash, John Tessman, George D. Cimino, Stephen T. Isaacs