Mannesmann Demag Corporation, Cross-Appellee v. Engineered Metal Products Co., Inc., Cross-Appellant

How courts have described this case

Verbatim parenthetical descriptions written by other courts when citing this decision. Ranked by citation-network relevance.

• “The presence of additional elements is irrelevant if all the claimed elements are present in the accused structure.”
• File wrapper estoppel prevents a patentee from enforcing its claims against otherwise legally equivalent structures if those structures were excluded by claim limitations added in order to avoid prior art.
• “Literal infringement requires that the accused device embody every element of the patent claim.”

Source: CourtListener parenthetical corpus (CC0).