wells turbine

hi i am back again; i am still researching on Ocean wave energy technology and my area of search is osscilating water columns. i have already designed built and tested a in house model of OWC but i have yet to venture in to the ocean. my next step involves just that. i am looking for a "wells turbine". i need to look at all the sizes of the turbine before i start designing. i already have done a analysis of the wave data in the area. i am looking at building a prototype for absorbing around 10kw. please give me some ideas as to how i can contact a wells turbine manufacturerer.