Patents Assigned to Biotechna Limited
  • Biomass production apparatus
    Patent number: 5137828
    Abstract: The production of biomass, such as algae, is carried out in a substantially transparent tube wound on an upstanding core structure. The exterior surface of the tube is exposed to natural light and the tube and/or the core is adapted to encourage light penetration into the tube in the region of contact between the tube and the core structure.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: August 11, 1992
    Assignee: Biotechna Limited
    Inventors: Lee F. Robinson, Angus W. Morrison