Preamble Limits Claim Where Body Of Claim Fails To Recite Complete Invention
Client Alert | 1 min read | 03.22.06
In Bicon, Inc. v. Straumann Co. (No. 05-1168; March 20, 2006), the Federal Circuit affirms the district court's grant of summary judgment of noninfringement. Bicon and Diro, Inc. sued Straumann for infringement of a patent for a dental implant prosthesis, i.e., an emergence cuff member for use in preserving interdental papilla. Central to the claim construction and infringement analyses of the Federal Circuit is a determination of whether the preamble of the claim at issue limits the claim.
The Federal Circuit finds that the preamble of the claim recites essential elements of the invention pertaining to the structure of an abutment that is used with the claimed emergence cuff, because the preamble contains structural features of the abutment, and the body of the claim refers back to the features of the abutment described in the preamble. Moreover, the Federal Circuit determines that if the claim is not limited by the preamble, some of the limitations of the claim would be rendered meaningless. Thus, the Federal Circuit concludes that the preamble limits the claim.
Insights
Client Alert | 4 min read | 12.04.25
District Court Grants Preliminary Injunction Against Seller of Gray Market Snack Food Products
On November 12, 2025, Judge King in the U.S. District Court for the Western District of Washington granted in part Haldiram India Ltd.’s (“Plaintiff” or “Haldiram”) motion for a preliminary injunction against Punjab Trading, Inc. (“Defendant” or “Punjab Trading”), a seller alleged to be importing and distributing gray market snack food products not authorized for sale in the United States. The court found that Haldiram was likely to succeed on the merits of its trademark infringement claim because the products at issue, which were intended for sale in India, were materially different from the versions intended for sale in the U.S., and for this reason were not genuine products when sold in the U.S. Although the court narrowed certain overbroad provisions in the requested order, it ultimately enjoined Punjab Trading from importing, selling, or assisting others in selling the non-genuine Haldiram products in the U.S. market.
Client Alert | 21 min read | 12.04.25
Highlights: CMS’s Proposed Rule for Medicare Part C & D (CY 2027 NPRM)
Client Alert | 11 min read | 12.01.25
