Pall Corporation v. Hemasure Inc.

How courts have described this case

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

• recognizing that technical terms are taken to have the meaning that they would ordinarily have in the field of the invention
• prosecution history estoppel is generated when a claim limitation is added in order to overcome a specific reference by the submission of new claims containing the limitation
• “Prosecution history estoppel bars a patentee from imposing liability for infringement by an otherwise equivalent device or method, when the claim scope that would have reached the accused device or method was relinquished by the patentee in order to avoid the prior art.”

Source: CourtListener parenthetical corpus (CC0).