Mass and Heat Recovery System for a Fuel Cell Power Plant, U. S. Patent 6,007,931 (with P. R. Margiott and L. L. Van Dine) December 28, 1999.
Mass Transfer Composite Membrane for a Fuel Cell Power Plant, U. S. Patent 6,048,383 (with R. D. Breault and L. L. Van Dine) April 11, 2000.
Start-up of a Cold Fuel Cell, U. S. Patent 6,068,941 (with D. J. Wheeler) May 30, 2000.
Start-up of a Frozen Fuel Cell, U. S. Patent 6,103,410 (with D. J. Wheeler) August 15, 2000.
Alcohol and Water Recovery System for Direct Aqueous Alcohol Fuel Cell Power Plant, U. S. Patent 6,110,613 August 29, 2000.
Method and Apparatus for Regenerating the Performance of a PEM Fuel Cell, (with J. Donahue, J. Yi, and D. Yang) U. S. Patent 6,399,231, June 4, 2002.
Compact Fuel Gas Reformer Assemblage, (with R. Lesieur, and N. Cipollini) U. S. Patent Application 2002/0102195 A1, August 1, 2002.