Patents Assigned to Purolator
  • Blood filter
    Patent number: 4162220
    Abstract: In a blood filter of the type having a blood inlet spike which is to be inserted in a blood bag the improvement comprising the outer surface of the blood inlet spike having a roughness of from about 50 to 200 microinches.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: July 24, 1979
    Assignees: Johnson & Johnson, Purolator
    Inventor: Francis M. Servas