Quantum Corporation v. Rodime, Plc

How courts have described this case

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

• holding that a change in a limitation from “at least 600 [tracks per inch (tpi) ]” to “at least approximately 600 tpi” impermissibly broadened the claim
• holding that a patentee who improperly en- larged the scope of its claims during reexamination, violating 35 U.S.C. § 305, was subject to a defense of invalidity
• holding “at least” means “as the minimum”
• “The addition of ‘approximately’ which means ‘reasonably close to,’ eliminates the precise lower limit of [a] range, and, in so doing extends the scope of the range.” (footnote omitted)
• “The addition of ‘approximately’ which means ‘reasonably close to,’ eliminates the precise lower limit of [a] range, and, in so doing extends the scope of the range.” (footnote omitted)

Source: CourtListener parenthetical corpus (CC0).