This was taken from a Howard Johnson website:
As of Sept. 2007, we do not know of anyone who has successfully replicated one of these motors, though many have tried, and many are presently making an attempt. If you are interested in pursuing this task, we invite you to join the HJ_Motor discussion list for that purpose.
Bob,
Sounds like you should build another one and show them how it's done. Just cut me in on some of the royalty money
-Andy