Print This Page


May 15, 2015

United States

Colorado—Silver Bullet's Patent


Silver Bullet Water Treatment Corp. markets technology to reduce and control Vibrio parahaemolyticus in shrimp ponds. A strain of V. parahaemolyticus causes acute hepatopancreatic necrosis disease (AHPND) or early mortality syndrome (EMS) in shrimp.  On May 7, 2015, Silver Bullet’s patent appeared on the Internet.


Shrimp News: You can click on the links below to view the diagrams of the Silver Bullet technology and to read all of the claims made for it.  Believe me, it’s not easy reading.  It’s very technical, legal, repetitive, obtuse and very difficult to understand.  I did not understand any of it:


Here are some of the claims made for the system.


“A water treatment device and methods of treating water such as in aquaculture systems are described.  The water treatment device utilizes oxygen containing air that is exposed to ultraviolet radiation and to a magnetic field to treat the water resulting in reduced and controlled Vibrio bacterial levels in the treated water.”


“A method to reduce the incidence of acute hepatopancreatic necrosis syndrome (AHPNS) caused by the presence of bacteria in shrimp growing in bacteria-containing water, by one or both of reducing and controlling the level of bacteria in the bacteria-containing water comprising: providing a treated oxygen-containing gas generated by passing an oxygen-containing gas stream through ultra-violet radiation in a magnetic field; and contacting the bacteria-containing water with the treated oxygen-containing gas to form a treated water, wherein the contacted water has a level of bacteria of about 1×101 CFU/ml to about 5×107 CFU/ml as compared to prior to the step of contacting.”


“The disclosed invention pertains generally to systems and methods for treating aquaculture waters.  More particularly, embodiments of the disclosed invention utilize ultraviolet light and/or magnets to treat aquaculture shrimp farming waters.”


“It can be appreciated that the method of one of controlling, reducing or both controlling and reducing the level of bacteria of the species Vibrio in water allows for shrimp surviving and growing in the treated aquaculture water.”


Download PDF 20150125545 of the Patent with Diagrams and Other Data.


Source:  Aquaculture Water Treatment Systems And MethodsUnited States Patent Application 20150125545.  Inventors: David Kolstad (Denver, Colorado, USA) and David Sunshine (Greenwood Village, Colorado, USA).  Application Number 14/495702. Filing Date: September 24, 2014. Publication Date: May 7, 2015.

Print This Page