Patents Assigned to Houseman Limited
  • Patent number: 5349874
    Abstract: Disclosed is a method for monitoring biofilm formation which comprises incorporating in an aquatic system, a sampler apparatus comprising a duct 1 having a port 5 in which is retained a stud 17 having a test surface 19 which lies flush with the wall of the duct. The invention can also be used to detect Legionellae bacteria.
    Type: Grant
    Filed: October 16, 1991
    Date of Patent: September 27, 1994
    Assignee: Houseman Limited
    Inventors: Simon F. D. Schapira, Robin W. Eycott, William P. Richardson, Jim S. Robinson