http://www.faqs.org/patents/app/20090104505

This patent explains a fuel cell structure design, some details might be useful on HHO cells.

I also have been exploring www.freepatentsonline.com there are some amazing inventions involving HHO and I.C.E.'s dating back to the 1920's if not earlier.

This one though, is quite informative and i encourage the HHO elite to read as it talks about common problems.

http://www.freepatentsonline.com/573...en&stemming=on