Patents Assigned to Accurate Polymers
  • Patent number: 6919021
    Abstract: A method and compound for the purification of proteins including the attachment of a non-peptidic, small compound which simulates the affinity of Protein A for immumoglobulins to a support matrix. Once attached on the support matrix, the resulting monochloro-triazine derivative is reacted with an excess of an amino compound at a higher temperature to achieve high levels of substitution. The resulting support matrix with ligand is useful in the affinity separations of antibodies. Further, a mercapto heterocyclic system ligand may be attached to the super matrix and useful in affinity separations of antibodies.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: July 19, 2005
    Assignee: Accurate Polymers, Ltd.
    Inventors: Bozidar Stipanovic, Martin Griffin, Ioannis Scarpa
  • Publication number: 20030209491
    Abstract: A method and compound for the purification of proteins including the attachment of a non-peptidic, small compound which simulates the affinity of Protein A for immumoglobulins to a support matrix. Once attached on the support matrix, the resulting monochloro-triazine derivative is reacted with an excess of an amino compound at a higher temperature to achieve high levels of substitution. The resulting support matrix with ligand is useful in the affinity separations of antibodies. Further, a mercapto heterocyclic system ligand may be attached to the super matrix and useful in affinity separations of antibodies.
    Type: Application
    Filed: April 8, 2003
    Publication date: November 13, 2003
    Applicant: Accurate Polymers, Ltd.
    Inventors: Bozidar Stipanovic, Martin Griffin, Ioannis Scarpa
  • Patent number: 6572767
    Abstract: A method and compound for the purification of proteins including the attachment of a non-peptidic, small compound which simulates the affinity of Protein A for immumoglobulins to a support matrix. Once attached on the support matrix, the resulting monochloro-triazine derivative is reacted with an excess of an amino compound at a higher temperature to achieve high levels of substitution. The resulting support matrix with ligand is useful in the affinity separations of antibodies. Further, a mercapto heterocyclic system ligand may be attached to the super matrix and useful in affinity separations of antibodies.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: June 3, 2003
    Assignee: Accurate Polymers, Ltd.
    Inventors: Bozidar Stipanovic, Martin Griffin, Ioannis Scarpa
  • Publication number: 20020030015
    Abstract: An affinity separation method and system comprising an affinity separation media with low porosity and low non-specific binding, and a fluid containing a target compound to be isolated which is capable of binding onto the affinity separation media in a fluid mixing loop in a static filtration apparatus. The static filtration apparatus comprises an intermixing-chamber containing a filtration medium wherein a tangential flow is created for intermixing the affinity separation media and target compound in the fluid. The fluid is capable of passing through the filtration median while the affinity separation media are substantially incapable of passing through the filtration medium. The affinity separation media are separated from the fluid by opening the filtrate outlet so as to allow the fluid to pass through the filtration medium of the static filtration apparatus. The filtrate can be thereby rendering substantially free of the target compound.
    Type: Application
    Filed: September 4, 2001
    Publication date: March 14, 2002
    Applicant: Accurate Polymers
    Inventors: Bozidar Stipanovic, William Darwin Garner
  • Patent number: 6315900
    Abstract: An affinity separation method and system comprising an affinity separation media with low porosity and low non-specific binding, and a fluid containing a target compound to be isolated which is capable of binding onto the affinity separation media in a fluid mixing loop in a static filtration apparatus. The static filtration apparatus comprises an intermixing-chamber containing a filtration medium wherein a tangential flow is created for intermixing the affinity separation media and target compound in the fluid. The fluid is capable of passing through the filtration medium while the affinity separation media are substantially incapable of passing through the filtration medium. The affinity separation media are separated from the fluid by opening the filtrate outlet so as to allow the fluid to pass through the filtration medium of the static filtration apparatus. The filtrate can be thereby rendering substantially free of the target compound.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: November 13, 2001
    Assignee: Accurate Polymers
    Inventors: Bozidar Stipanovic, William Darwin Garner