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... We affirm. I. Brief Summary of Relevant Patent Law Rules. A. The On Sale Bar Rule. ... B. The '643
Patent. On June 28, 1996, Minton filed his provisional application for United States Patent No.
6,014,643 (the '643 Patent), more than one year after signing the TEXCEN Lease. ...
...  The 454 patent under which the land ... See id. Claims for Declaratory Relief Regarding Title.
Koch seeks declaratory relief that the term "minerals," as contemplated under the original patent
and the applicable statutes, does not include limestone or the other disputed materials. ...
... At [PSI]'s request, [Southwest Research] shall use its diligent efforts to cause its employees to
execute all papers necessary or incidental to timely and proper applications for Letters Patent
of the United States and all foreign countries and to convey to [PSI] complete title to all ...