Appeal 2007-0128
Reexamination Control 90/006,208
Patent 5,573,648
Dempsey identifies various portions of Figure 1 including the following
parts:
1 Reservoir
2 Distilled Water
3 Gasket
5 & 6 Hydrated Ports
7 Water Channel
8 Hydrated solid polymer electrolyte (SPE) cation exchange membrane
10 Counter electrode
11 Catalytic reference electrode
13 Sensing electrode
14 Sensing port
15 Bottom plate
16 & 17 Opening and barrier film to permit passage of air while blocking
CO
(Id. at col. 4, line 30 to col. 5, line 21).
11) Dempsey states that a method of forming gas sensing electrodes is
Adescribed in detail in U.S. Pat. No. 3,134,697, entitled >Fuel Cell,= issued May
26, 1964.@ (Id. at col. 7, ll. 18-25).
12) Dempsey also teaches that the Anature and characteristics@ of the electrodes
is described in AU.S. Pat. No. 3,297,484, entitled >Electrode Structure and Fuel
Cell Incorporating the Same,= issued Jan. 10, 1967.@ (Id. at col. 8, ll. 31-44).
13) Dempsey exemplifies sensing and counter electrodes having a 1.6 cm
10
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