Patents by Inventor Ruth Gregory

Ruth Gregory 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).

  • Synthesis of polymer bio-active conjugates
    Patent number: 6172202
    Abstract: A process for the preparation of a conjugate between a poly (ethylene glycol) and a protein or glycoprotein, the process comprising specifically binding the domain to a specific binder, to shield the domain from the poly (ethylene glycol) in the following conjugating step, thereafter conjugating the poly (ethylene glycol) to the protein or glycoprotein, wherein conjugation of the poly (ethylene glycol) to the domain is avoided and thereafter releasing the specific binder from the domain without releasing the poly (ethylene glycol) from the protein or glycoprotein, wherein the protein or glycoprotein is other than a proteolytic enzyme selected from the group consisting of trypsin, urokinase, tissue plasminogen activator, plasmin, chymotrypsin, elastase and kallikrein.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: January 9, 2001
    Assignee: Pharmacia S.p.A.
    Inventors: Fabrizio Marcucci, Ruth Gregory