In a pair of decisions handed down on the same day by Chief
Judge Prost, the US Court of Appeals for the Federal Circuit struck
down a raft of claims on the basis of various doctrines, including
patent ineligibility, collateral estoppel and standing.
Intellectual Ventures I LLC v. Capital One Financial
Corp., Case No. 16-1077 (Fed. Cir., Mar. 7, 2017) (Prost, CJ);
Intellectual Ventures I LLC v. Erie Indemnity Co., Case
No. 16-1128 (Fed. Cir., Mar. 7, 2017) (Prost, CJ).
The cases involved overlapping patents related to data filtering
and processing, three of which the Federal Circuit discussed from a
technical point of view. Two of those patents related to XML
technology, a flexible mark-up language used for formatting
documents and tagging databases, and covered claims related to
editing XML documents in a way that resolved cross-system
compatibility issues and filtering XML tagged databases. The final
patent covered a file bookmarking system that allowed users
