Patents Assigned to Baker Instruments Corp.
  • Automatic pipettor employing an adjustable volume delivery pump
    Patent number: 4372175
    Abstract: Pipettor apparatus for dispensing accurate and precise amounts of liquid employs a first pump having a delivery capacity sufficient to handle substantially all of the liquid to be dispersed and a second pump whose delivery capacity is adjustable and only a fraction of the capacity of the first pump.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: February 8, 1983
    Assignee: Baker Instruments Corp.
    Inventor: Bernard Parker
  • Automatic pipettor
    Patent number: 4344768
    Abstract: Pipettor apparatus for automatically and rapidly transferring accurate and precise multiple quantities of samples (e.g., blood serum) and reagent to the rotatable transfer disc of a centrifugal analyzer.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: August 17, 1982
    Assignee: Baker Instruments Corp.
    Inventors: Bernard Parker, Brian Parsonnet
  • Process for preparation of folic acid derivatives
    Patent number: 4337339
    Abstract: Folic acid derivatives, such as radiolabeled pteroyltyrosine, are conveniently synthesized from either pteroic acid or by the direct condensation of 6-formylpterin with p-aminobenzoyltyrosine methyl ester. The radioiodinated derivatives are particularly useful in competitive protein binding and radioimmuno-assays of folate compounds.
    Type: Grant
    Filed: October 31, 1979
    Date of Patent: June 29, 1982
    Assignee: Baker Instruments Corp.
    Inventors: Peter R. Farina, James A. Grattan
  • Folic acid derivatives and process for preparation
    Patent number: 4314988
    Abstract: Folic acid derivatives, such as radiolabeled pteroyltyrosine, are conveniently synthesized from either pteroic acid or by the direct condensation of 6-formylpterin with p-aminobenzoyltyrosine methyl ester. The radioiodinated derivatives are particularly useful in competitive protein binding and radioimmuno-assays of folate compounds.
    Type: Grant
    Filed: October 31, 1979
    Date of Patent: February 9, 1982
    Assignee: Baker Instruments Corp.
    Inventors: Peter R. Farina, James A. Grattan
  • Pipettor
    Patent number: D269703
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: July 12, 1983
    Assignee: Baker Instruments Corp.
    Inventor: Bernard Parker