Sionix said the continuation patent expands the coverage of the prior patents by granting the company additional protection for modifications, additions and improvements within the container housing its proprietary dissolved air flotation (DAF) technology.

Sionix chairman and CEO James Currier said as many applications for MWTS are customized in some way, the additional patent protection for modifications and additions within the container housing is important.

"We intend to continue to work to enlarge our current patent and intellectual property portfolio related to our proprietary DAF technology," Currier said.

Sionix said it currently has four patents issued on its DAF technology, one provisional patent on file for its Evaporator technology, and three additional patent applications are on file, all relating to further advances of the Sionix proprietary bubble generation process.