Patents Assigned to Peter Paul Speiser
  • Biological materials
    Patent number: 4269821
    Abstract: There are described processes for the preparation of submicroscopic particles of physiologically acceptable polymer associated with a biologically active material, by polymerizing a monomer in the presence of the biologically active material or by adsorbing the biologically active material upon preformed submicroscopic polymer particles. Where the biologically active material is an antigen, the particles are useful as constituents of injectable vaccines having an adjuvant effect.
    Type: Grant
    Filed: May 2, 1980
    Date of Patent: May 26, 1981
    Assignees: Jorg Kreuter, Peter Paul Speiser
    Inventors: Jorg Kreuter, Peter P. Speiser
  • Biological materials
    Patent number: 4225581
    Abstract: There are described processes for the preparation of submicroscopic particles of physiologically acceptable polymer associated with a biologically active material, by polymerizing a monomer in the presence of the biologically active material or by adsorbing the biologically active material upon preformed submicroscopic polymer particles. Where the biologically active material is an antigen, the particles are useful as constituents of injectable vaccines having an adjuvant effect.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: September 30, 1980
    Assignees: Jorg Kreuter, Peter Paul Speiser
    Inventors: Jorg Kreuter, Peter P. Speiser