suppressed or concealed the actual reduction to practice within
the meaning of 35 U.S.C. § 102(g).
C. Discussion
Each of the six briefs before us discusses the suppression
and concealment issue.
1. Suppression or concealment
Numerous opinions of the Federal Circuit, the former CCPA
and the board have addressed the issue of suppression and
concealment within the meaning of 35 U.S.C. § 102(g) as applied
to interference cases. Those opinions include:
(1) Palmer v. Dudzik, 481 F.2d 1377, 178 USPQ 608
(CCPA 1973);
(2) Young v. Dworkin, 489 F.2d 1277, 180 USPQ 388
(CCPA 1974);
(3) Peeler v. Miller, 535 F.2d 647, 190 USPQ 117
(CCPA 1976);
(4) Horwath v. Lee, 564 F.2d 948, 195 USPQ 701
(CCPA 1977);
(5) Shindelar v. Holdeman, 628 F.2d 1337,
207 USPQ 112 (CCPA 1980);
(6) Smith v. Crivello, 215 USPQ 446
(Bd. Pat. Int. 1982);
(7) Correge v. Murphy, 705 F.2d 1326,
217 USPQ 753 (CCPA 1983);
(8) Paulik v. Rizkalla, 760 F.2d 1270,
226 USPQ 224 (Fed. Cir. 1985) (in banc);
(9) Holmwood v. Cherpeck, 2 USPQ2d 1942
(Bd. Pat. App. & Int. 1986);
(10) Lutzker v. Plet, 843 F.2d 1364, 6 USPQ2d 1370
(Fed. Cir. 1988); and
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