Appeal No. 2006- 1669 Application No. 10/476,257 1321, 1327 (Fed. Cir. 2005)), we also recognize the distinction between using the specification to interpret the meaning of a claim and importing limitations from the specification into the claim. We can discern the line between construing terms and importing limitations with reasonable certainty and predictability by remaining focused on understanding how a person of ordinary skill in the art would understand the claim terms. See Phillipps, 415 F.3d at 1323, 75 USPQ2d at 1334. For instance, although the specification may describe very specific embodiments of the invention, our reviewing court has repeatedly warned against confining the claims to those embodiments. Id. As mentioned in our decision (p. 3), the appellant’s specification does not expressly state that the winglet 12 is “fixed,” much less define the term “winglet” as being a structure fixedly mounted to the wing. The appellant’s implication on page 4 of the request that the appellant’s specification, at page 1, line 4, defines “winglet” as “a fixed upturned tip on a wing” is a misrepresentation. Appellant’s specification, at page 1, lines 4-7, reads “A winglet generally takes the form of an upturned tip on a wing or other flying surface on an aircraft although the term ‘winglet’ may also embrace an end plate which extends both above and below the upper and lower surfaces at the tip of a wing or other flying surface.” The term “fixed” is not used therein. The fact that one skilled in the art might infer from the appellant’s specification, in particular the problems to be solved by the invention, that the winglet 12 described in the specification is fixed to the wing no more constitutes a definition of “winglet” as being fixed to the wing than the specification’s description of the winglet 12 as having a moveable control surface 3Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 NextLast modified: November 3, 2007