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Brown & Williamson Tobacco Corp. v. Philip Morris Inc., 229 F.3d 1120, 56 U.S.P.Q.2d 1456

Facts

Brown & Williamson Tobacco Corp. (B & W) filed a patent infringement lawsuit against Philip Morris Inc. (PM) regarding the Luke patent, which claims a cigarette with a reduced circumference. The district court found the claims invalid for obviousness but ruled that PM willfully infringed the patent. B & W appealed the decision, while PM cross-appealed on other grounds. The Court of Appeals ultimately affirmed the district court's ruling on the obviousness of the claims.

Issue

Were the claims of the Luke patent invalid for obviousness?

Were the claims of the Luke patent invalid for obviousness?

Rule

The determination of whether an invention is obvious is a legal conclusion based on the totality of evidence, including the scope and content of prior art, the level of ordinary skill in the art, differences between the claimed invention and prior art, and objective evidence of nonobviousness. The party asserting invalidity must prove the disputed facts by clear and convincing evidence.

Analysis

The court analyzed the prior art, including the More cigarette and articles by Rice, Resnik, and Muramatsu, which provided motivation to reduce the circumference of cigarettes. The findings indicated that a person of ordinary skill in the art would have recognized that reducing the circumference would yield a more efficient cigarette. The evidence supported the conclusion that the claims were obvious based on the teachings of the prior art.

The district court made findings on all four of the Graham factors. The court described the prior art at length, described the level of ordinary skill in cigarette design at the time when Luke made his invention, explained the differences between the prior art and the claims at issue, and assessed various secondary indicators of nonobviousness. The district court found obviousness based primarily on the prior art of the More cigarette and the three references of Rice, Resnik, and Muramatsu.

Conclusion

The Court of Appeals affirmed the district court's decision that the claims of the Luke patent were invalid for obviousness.

Because the district court did not err in finding claims 1, 4, and 11 obvious over the prior art, we affirm the district court's decision that claims 1, 4, and 11 are invalid.

Who won?

Philip Morris Inc. prevailed in the appeal as the Court of Appeals affirmed the district court's ruling that the claims of the Luke patent were invalid for obviousness. The court found that the evidence presented demonstrated a clear motivation to combine prior art references, leading to the conclusion that the invention was obvious to a person of ordinary skill in the art at the time of the invention.

PM prevailed in the appeal as the Court of Appeals affirmed the district court's ruling that the claims of the Luke patent were invalid for obviousness, indicating that the evidence presented demonstrated a clear motivation to combine prior art references, leading to the conclusion that the invention was obvious to a person of ordinary skill in the art at the time of the invention.

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