Athletic Alternatives, Inc. v. Benetton Trading USA, Inc.

174 F. App'x 571
CourtCourt of Appeals for the Federal Circuit
DecidedMarch 31, 2006
Docket2005-1378
StatusUnpublished
Cited by1 cases

This text of 174 F. App'x 571 (Athletic Alternatives, Inc. v. Benetton Trading USA, Inc.) is published on Counsel Stack Legal Research, covering Court of Appeals for the Federal Circuit primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Athletic Alternatives, Inc. v. Benetton Trading USA, Inc., 174 F. App'x 571 (Fed. Cir. 2006).

Opinion

PER CURIAM.

I

Athletic Alternatives, Inc., (“AAI”) owns U.S. Patent No. 5,197,731 (“the ’731 patent”), which is directed to a sports racquet having an interwoven string bed in which the ends of the strings are anchored in frame holes that he alternately above and below the plane of the string bed. That configuration of string ends is referred to as “splay,” and the distance between the holes above and below the plane is referred to as the splay distance or degree of splay. We affirm in part and reverse in part.

In 1990, AAI and Prince Manufacturing, Inc., to which Benetton Trading USA, Inc., is a successor in interest, entered into a confidentiality agreement regarding AAI’s “Redemption Stringing System.” Under that agreement, Prince and AAI shared ideas on racquet designs, but they ultimately failed to reach a mutually satisfactory licensing arrangement. Prince subsequently released its Vortex tennis racquet. The Vortex racquet contained cross strings (lateral strings) having two different degrees of splay, 2 millimeters in some portions of the racquet and 4.5 millimeters in other portions.

In 1992, AAI sued Prince for infringement of U.S. Patent No. 5,037,097 (the parent of the ’731 patent) and trade secret misappropriation. Prince separately sued for a declaratory judgment of non-infringement and invalidity with respect to the ’731 patent. Those two cases were eventually consolidated. The parties stipulated to a dismissal of AAI’s trade secret misappropriation claim without prejudice, and to a stay of the declaratory judgment action involving the ’731 patent. The district court then granted summary judgment of noninfringement of the ’097 patent. On appeal from that judgment, this court affirmed. Athletic Alternatives, Inc. v. Prince Mfg., Inc., 73 F.3d 1573 (Fed.Cir.1996). In 1997, Prince sought and obtained a dismissal of its declaratory judgment claim without prejudice.

In 1996, AAI requested reexamination of the ’731 patent. Claims 1 and 2 were initially rejected by the examiner as anticipated by prior art including French Patent No. 2,276,845 to Martel. On appeal, however, the Board of Patent Appeals and Interferences reversed the rejection, explaining that the Martel reference is silent as to the direction in which the opposite *573 ends of a string are splayed. In response to the examiner’s observation that whether string ends splay in opposite directions depends on whether there is an odd or even number of longitudinal main strings, the Board held that Martel does not inherently disclose a racquet with an even number of longitudinal strings and thus does not disclose all the limitations of the ’731 patent.

Shortly thereafter, AAI filed the instant action. With respect to claims 1-2 and 8-9, the district court granted summary judgment for Prince, finding those claims obvious in light of the Martel prior art reference. The district court also dismissed AAI’s claim for breach of contract, finding it barred by the statute of limitations. Following a bench trial, the court held that Prince’s racquets do not infringe claim 3 and that claims 3-5 are invalid for indefiniteness.

II

1. Claim 3 of the ’731 patent requires that string ends anchored in “the sides of said frame ... are splayed to a greater degree in the regions where the length of said ends is greater.” As a matter of claim construction, the district court ruled that the quoted language “requires two or more splay distances along the sides of the racquet.” AAI states that it does not challenge the district court’s construction of claim 3. It argues, however, that the Vortex racquets infringe claim 3 because the sides of the Vortex racquets contain more than one splay distance. In particular, AAI asserts that at least one lateral string on each of the accused racquets (the “disputed string”) is anchored in the “side” and has a splay distance of 2 millimeters, as opposed to the 4.5 millimeter splay distances of all the other strings anchored along the racquet’s side.

In its Markman order, the district court observed that the written description and figures of the ’731 patent characterize the racquet frame as being divided into a “tip,” a “heel,” two “sides,” and four “corners,” with the tip and heel separated from the sides by the corners. In its subsequent opinion, the court noted that Figure 8 indicates that the term “corners” refers to those portions of the racquet frame that contain both longitudinal and lateral strings, whereas the term “sides” refers to those portions that contain only lateral strings. The court also explained that the specification uses the term “corners” to mean “those regions ... where it is ‘desirable’ to have ‘minimal [splay distance]’ to ‘facilitate the stringing of the racquet.” ’ See ’731 patent, col. 8, II. 39-44. The court concluded that claim 3, “in reference to the ‘sides,’ calls for increased splay in ‘the regions where the length of said ends is greater.” ’ With respect to AAI’s infringement argument, the court found that the disputed strings in the accused racquets are anchored in the corners, not the sides, and that the accused racquets therefore “have only a single degree of splay along the sides and therefore do not infringe claim 3 of the ’731 patent.”

In light of AAI’s acceptance of the district court’s claim construction, its appeal targets only the district court’s factual finding that the Prince racquets do not infringe because the disputed strings are anchored in the corners and thus all of the strings on the sides have an equal degree of splay. We review that finding of fact for clear error, and we reverse only if “on the entire evidence [we are] left with the definite and firm conviction that a mistake has been committed.” Biovail Corp. Int’l v. Andrx Pharms., Inc., 239 F.3d 1297, 1300 (Fed.Cir.2001).

The district court noted that Prince’s Director of Research and Devel *574 opment testified that the splay of the disputed string in each of the accused racquets was reduced “in order to facilitate stringing.” Moreover, the court found that the degree of splay in the regions of the sides where the string ends are longer is 4.5 millimeters, the same amount as in the regions of the sides where the string ends are shorter. In what the court referred to as the “transition regions between tip and sides, and the heel and the sides,” i.e., the comers, the court found that the splay distance in the Prince racquets is only 2 millimeters. Because we find no clear error in the district court’s factual determination that the disputed string in each of the accused racquets is anchored in the “corner” and not the “side,” we uphold the district court’s decision that Prince’s accused racquets do not infringe claim 3 of the ’731 patent.

2. AAI argues that the district court erred in granting summary judgment that claims 1-2 and 8-9 of the ’731 patent are obvious in light of the Martel patent.

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174 F. App'x 571, Counsel Stack Legal Research, https://law.counselstack.com/opinion/athletic-alternatives-inc-v-benetton-trading-usa-inc-cafc-2006.