Background
ParkerVision sued Qualcomm for infringing U.S. Patent Nos. 7,218,907 and 6,091,940. The asserted receiver claims concern down-converting electromagnetic signals, while the ’940 patent’s transmitter claims concern up-converting signals. In an earlier appeal, the Federal Circuit vacated summary judgment for Qualcomm and directed the district court to conduct any necessary claim construction for the receiver claims and revisit the transmitter claims after erroneously excluding ParkerVision’s experts.
On remand, the district court construed the claims, and the parties stipulated that Qualcomm’s accused products did not infringe the receiver claims. The court entered partial summary judgment on those claims, resolving every asserted claim of the ’907 patent but leaving the ’940 patent’s transmitter claims unresolved. At ParkerVision’s request, the court entered a purported final judgment under Federal Rule of Civil Procedure 54(b) covering the receiver claims and severed and stayed the transmitter claims pending appeal.
The Court’s Holding
The Federal Circuit dismissed the appeal for lack of jurisdiction. It held that, for Rule 54(b) purposes, infringement of different claims within the same patent ordinarily does not create separate causes of action. Because the unresolved transmitter claims and the resolved receiver claims of the ’940 patent belonged to a single infringement cause of action, the receiver-claim ruling did not finally dispose of that cause of action and could not support a partial final judgment.
The court also lacked jurisdiction to review the ’907 patent ruling by itself. Although all asserted claims of that patent had been resolved, the district court had certified the receiver claims of both patents together and had not expressly found no just reason to delay an appeal limited to the ’907 patent. Nor could the court rely on pendent appellate jurisdiction or treat the deficient Rule 54(b) certification as an interlocutory appeal under 28 U.S.C. § 1292(b), because the required independent certification and findings were absent.
The Federal Circuit also denied ParkerVision’s request to reassign the case. Applying Eleventh Circuit law, it found no basis to doubt the district judge’s impartiality or ability to set aside prior views, and concluded that reassignment would create substantial waste and duplication given the case’s technical complexity and lengthy history.
Key Takeaways
- For Rule 54(b), individual patent claims are not ordinarily separate civil-procedure claims; infringement of a patent generally constitutes one cause of action.
- A Rule 54(b) appeal requires an express, claim-specific determination that there is no just reason for delay, and an appellate court cannot reconstruct a certification the district court never made.
- Judicial frustration with lengthy, complex litigation does not by itself warrant reassignment, particularly when a new judge would have to master an extensive technical record.
Why It Matters
The decision limits attempts to obtain immediate appellate review by dividing resolved and unresolved patent claims within the same patent. Litigants seeking an early appeal must identify a fully disposed cause of action and obtain the findings required by the correct procedural mechanism.
The dismissal leaves the receiver-claim partial summary judgment in place but strips it of purported finality for immediate appellate review. The case returns to the district court at the point before entry of the Rule 54(b) judgment, with the ’940 patent’s transmitter claims still unresolved and the district court retaining discretion over how to proceed.