DAVID S CHOU, MD
Radiology at Columbia Rd, Grand Forks, ND

2013014, Jun 6, 2013

Feb 1, 2013

13/757596

David Shih-Wei Chou - Grand Forks ND, US

F16M 13/02

248550, 248323, 248324

A device and system for growing a photosynthetic culture is provided which employs one or a plurality of vertically disposed photopanels having an inner chamber configured for holding liquid and the photosynthetic culture such as algae. The inner chamber of the photopanels may have a shape that is defined as well as structurally supported by bridging elements. The photopanels with the bridging elements may be formed as stepped cones and pyramids utilizing common recyclable clear plastic sheets and membranes. The bridging elements also serve to increases the surface area to volume ratio of the inner chamber, expand the surface area exposed to light, alter the hydrodynamics within the photopanel as well as distribute light as light guides to facilitate homogenization of light exposure to individual cells. The bridging elements also have features that allow utilization of direct light beams with shallow grazing angles. When deployed with a support system that allows both translation and rotation of the photopanels, the deployed photopanel array functions as a complete optical system capable of dynamic control of sun light exposure to an algae culture to optimize photosynthetic efficiency.

2011030, Dec 15, 2011

Jun 15, 2011

13/161462

David Shih-Wei Chou M.D. - Grand Forks ND, US

C12M 1/00

4352921

A device and system for growing of a photosynthetic culture is provided which employs one or a plurality of vertically disposed photopanels having interior cavities configured for holding liquid and the photosynthetic culture such as algae. Interior surfaces are enhanced in size by projections defined by deformation in sidewalls of the photopanels. The projections communicate between the sidewalls also providing structural integrity to the photopanel and allowing for thinner sidewalls and increased light transmission therethrough. The system may employ a support rack and pivotal mount to each such photopanel to allow positioning adjacent to each other in rows. Pivoting during different lighting conditions afforded the racked photopanels provides a manner to reduce light blockage to individual photo panels from adjacent photopanels.

2013014, Jun 13, 2013

Dec 14, 2012

13/715933

David Shih-Wei Chou - Grand Forks ND, US

F16M 13/02

248550, 248323, 248324

A device and system for growing a photosynthetic culture is provided which employs one or a plurality of vertically disposed photopanels having interior cavities configured for holding liquid and the photosynthetic culture such as algae. The inner chamber of the photopanels may have a shape that is structurally supported by bridging elements. The bridging elements may be formed as stepped cones that may function as light guides to the interior chamber.

2012011, May 10, 2012

Dec 15, 2011

13/327686

David Shih-Wei Chou - Grand Forks ND, US

C12M 1/42

4352921

A device and system for growing a photosynthetic culture is provided which employs one or a plurality of vertically disposed photopanels having interior cavities configured for holding liquid and the photosynthetic culture such as algae. The inner chamber of the photopanels may have a shape that is structurally supported by bridging elements. The bridging elements may be formed as stepped cones that may function as light guides to the interior chamber.