Thanks for the pointer. Three patents listed:
-U.S. Patent No. 5,631,099 Surface Replica Fuel Cell, May 20, 1997
This is the one I was talking about. Not clear to me at this point how good its coverage & defensibility are. Any opinions?
-U.S. Patent No. 5,482,568 Micro Mirror Photovoltaic Cell, January 9, 1996.
Interesting, but doesn't appear relevant to the fuel cell discussion.
-U.S. Patent No. 4,673,624 Fuel Cell, June 16, 1987.
For some reason patents.ibm.com didn't turn that up when I searched for "Hockaday" and "fuel cell". The patent number pulls it up though; I'll look through it. Thanks again.
- nic |