In 2012, at least five patent applications have published related to treatment of hydraulic fracturing water including waste water.  We expect this number to grow.  A variety of assignees are evident.  Lux Research recently published a report on the subject of water treatment.  Examples of patent filings include:

General Electric’s 2012/0097614 (interesting: DOE funding is evident);

Encana Corp.’s 2012/0085236 (Calgary);

Aquionics, Inc.’s 2012/0070339 (Kentucky);

Chevron’s 2012/0024525; and

Don Nevin’s 2012/0012307