Qualcomm & Intel v. Appellee: Federal Circuit Affirms in Part on Power Tracker Patent
Qualcomm, Inc. and Intel Corporation jointly challenged the patentability of US9608675B2 — a power tracker enabling multiple simultaneous transmit signals — before the Federal Circuit. The court issued a split disposition, affirming in part and dismissing in part, across an 851-day appellate proceeding.
A split Federal Circuit ruling on wireless power-tracker patentability
Filed on 26 May 2022, Case No. 22-1824 saw Qualcomm, Inc. and Intel Corporation act as co-appellants before the Court of Appeals for the Federal Circuit, challenging a patentability determination concerning US9608675B2. That patent, filed under application number US13/764328, protects a power tracker architecture designed to manage multiple transmit signals sent simultaneously — a critical capability in modern multi-carrier and carrier-aggregation wireless systems.
The Federal Circuit closed the case on 23 September 2024, issuing a verdict of ‘Affirmed in Part and Dismissed in Part.’ The affirmed portion means the court found no reversible error in the underlying tribunal’s conclusions on those specific claims or issues, leaving that portion of the lower decision intact. The dismissed portion signals that part of the appeal was terminated on procedural or jurisdictional grounds without a merits ruling, consistent with the stated basis of termination — ‘Appeal Dismissed in Part.’
At 851 days, the proceeding ran longer than the Federal Circuit’s typical resolution window, suggesting substantive complexity in the patentability arguments or the need to parse claim-by-claim granularity. The public record does not disclose the specific claims affirmed versus those underlying the dismissal, nor the precise procedural basis for the partial dismissal. The involvement of both Qualcomm and Intel as co-challengers is commercially significant, suggesting coordinated industry opposition to the patent-at-issue.
Filing to Appeal Dismissed in Part in 851 days
851 days — above average for a Federal Circuit patent appeal, which typically resolves in 12–18 months
Federal Circuit affirms in part: what the split ruling means for both parties
‘Affirmed in Part’ means no reversible error found on core issues
When the Federal Circuit ‘affirms in part,’ it concludes that the lower tribunal committed no reversible legal error on those specific claims, issues, or grounds. The affirmance carries the weight of the appellate standard of review — typically de novo for claim construction and legal invalidity questions, substantial evidence for factual findings. The affirmed portion of the lower decision now stands with Federal Circuit backing.
Appellate affirmance standardAffirmed portion strengthens enforceability of US9608675B2 claims
For the patent holder, the partial affirmance means the challenged claims that survived the appellate review retain their validity and enforceability. A Federal Circuit affirmance raises the bar for any future challenge to those same claims, as the appellate court has now endorsed the lower tribunal’s patentability conclusions. The dismissed portion, however, leaves some uncertainty about the full scope of protection that was tested.
Patent survivability strengthenedQualcomm and Intel’s appeal only partially succeeded at the Federal Circuit
The co-appellants — Qualcomm and Intel — achieved only a split result. The affirmed portion means their invalidity or patentability arguments on those issues were rejected at the highest specialised patent appellate level. Further challenge to the affirmed claims would require en banc Federal Circuit review or a petition to the Supreme Court, both high-bar paths. The dismissed portion may preserve some avenue depending on the procedural basis, which is not fully disclosed in the public record.
Appellate options narrowedPower tracker IP landscape faces higher challenge bar post-affirmance
US9608675B2 covers power tracker technology for simultaneous multi-signal transmission — a core capability in 4G/5G carrier aggregation and multi-antenna wireless systems. With the Federal Circuit affirming the lower patentability decision in part, competitors and implementers in the RF semiconductor and wireless chipset space face a strengthened patent position on those claims. Product teams building power management IP for multi-carrier systems should factor this outcome into their freedom-to-operate analysis.
RF power management IP risk elevatedFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Qualcomm, Inc. | Company | Semiconductor and wireless technology companies — co-appellants challenging validity of US9608675B2Search in Eureka ↗ |
| Co-Plaintiff | Intel Corporation | Company | Search in Eureka ↗ |
| Defendant | Defendant | Individual | Appellee identity not disclosed in available public case recordSearch in Eureka ↗ |
| Plaintiff counsel | David B. Cochran | Attorney | Counsel for Qualcomm, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Israel Sasha Mayergoyz | Attorney | Counsel for Qualcomm, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Jennifer L. Swize | Attorney | Counsel for Qualcomm, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Joshua R. Nightingale | Attorney | Counsel for Qualcomm, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Kelly Holt Rodriguez | Attorney | Counsel for Qualcomm, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Marc Blackman | Attorney | Counsel for Qualcomm, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Matthew Johnson | Attorney | Counsel for Qualcomm, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Robert Breetz | Attorney | Counsel for Qualcomm, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Jones Day | Law Firm | Representing Qualcomm, Inc.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Court of Appeals for the Federal CircuitSearch in Eureka ↗ |
Official order — verbatim text
The Federal Circuit’s disposition of ‘Affirmed in Part and Dismissed in Part’ is a split outcome carrying distinct legal consequences for each portion. The affirmance applies the court’s appellate standard — de novo on questions of law and substantial evidence on underlying facts — and signals that the lower tribunal’s patentability conclusions withstood scrutiny on those issues. The partial dismissal, grounded in the stated basis of ‘Appeal Dismissed in Part,’ suggests certain appellate claims or parties lacked the procedural footing for a merits ruling, though the precise basis is not fully apparent from the public docket alone.
US9608675B2 — Power tracker for multiple simultaneous transmit signals
US9608675B2, filed under application number US13/764328, protects a power tracker architecture for managing power across multiple transmit signals sent simultaneously. This technical capability is central to carrier aggregation and multi-antenna transmission modes that underpin modern 4G LTE-Advanced and 5G NR systems. The patent’s claims address a longstanding engineering challenge: efficiently tracking and supplying dynamic power to multiple concurrent RF transmit chains without excess energy dissipation or signal interference.
In the RF semiconductor and wireless chipset sector, power tracker IP carries significant commercial weight. Carrier aggregation is now standard in virtually all flagship mobile devices and base station equipment, making power management patents in this domain potentially standard-adjacent. The fact that Qualcomm and Intel jointly challenged this patent’s patentability suggests it covers territory both companies viewed as either overlapping with their own portfolios or threatening to their product architectures. The Federal Circuit’s partial affirmance elevates the patent’s strategic standing for licensing and enforcement purposes.
Should you run an FTO analysis against US9608675B2?
Any company developing RF front-end modules, power amplifier systems, or baseband chipsets that support simultaneous multi-carrier transmission should treat US9608675B2 as a priority FTO asset following this Federal Circuit affirmance. This includes vendors supplying 5G NR carrier-aggregation solutions, multi-band power management ICs, and envelope-tracking components. The affirmed claims now carry appellate-backed validity, raising the risk threshold for products that may read on the patent’s power tracking architecture.
PatSnap Eureka’s FTO Search Agent enables R&D and IP teams to map US9608675B2’s claim scope against your specific product architecture. Eureka can identify claim elements relevant to your transmit signal management design, surface related family members and continuations that may extend coverage, and flag prosecution history estoppel arguments. Running a targeted FTO now — before design lock-in — is materially cheaper than navigating infringement exposure post-launch in a market where this patent has already survived Federal Circuit scrutiny.
Run a freedom-to-operate analysis on US9608675B2 to assess your product’s exposure
Run FTO in Eureka →Similar Federal Circuit patentability appeals in wireless power management IP
Cases involving Federal Circuit patentability appeals on RF power tracking and multi-carrier wireless semiconductor patents, including proceedings where major chipset firms served as appellants.
What this case signals for the wireless semiconductor IP landscape
A Federal Circuit split ruling involving two of the world’s largest semiconductor firms signals concentrated IP risk in multi-signal power tracking technology.
Joint challenges by Qualcomm and Intel signal broad industry concern
When industry heavyweights of this scale co-appellant a patentability ruling, it typically signals that the underlying patent is perceived as threatening to standard-essential or widely-practised technology. The partial failure of the challenge reinforces that US9608675B2 covers non-trivial technical ground in multi-transmit power management.
The ‘dismissed in part’ element creates residual uncertainty worth monitoring
Partial procedural dismissals at the Federal Circuit can reflect standing issues, claim narrowing at earlier stages, or issue preclusion dynamics. Companies relying on the dismissed portion for clearance arguments should treat that portion with caution until the specific basis is confirmed in the full opinion.
Qualcomm v Defendant — key questions answered
The Federal Circuit issued a verdict of ‘Affirmed in Part and Dismissed in Part’ on 23 September 2024. The affirmed portion means the lower tribunal’s patentability conclusions on those issues were upheld, finding no reversible error. The dismissed portion was terminated on procedural grounds without a merits ruling on those specific aspects of the appeal.
US9608675B2 covers a power tracker for multiple transmit signals sent simultaneously — a core capability in carrier-aggregation and multi-antenna wireless systems used in 4G and 5G devices. Power tracking technology manages dynamic power supply across concurrent RF transmit chains, directly affecting device efficiency and signal quality. Its relevance to standard wireless transmission modes makes it a commercially significant patent in the RF semiconductor sector.
The public record does not disclose the parties’ explicit rationale, but joint challenges of this nature by major semiconductor firms typically suggest the patent is perceived as threatening to widely-practised technology or overlapping with the challengers’ own product architectures. The involvement of both Qualcomm and Intel as co-appellants suggests coordinated industry opposition, consistent with a patent that may implicate carrier-aggregation power management broadly.
The affirmed portion carries Federal Circuit backing, significantly raising the bar for future challenges to those specific claims. Subsequent inter partes review petitions on affirmed claims face potential estoppel obstacles and judicial efficiency hurdles. The dismissed portion’s status depends on the specific procedural basis, which may or may not foreclose future action on those issues. En banc review or Supreme Court certiorari remain theoretical options for the affirmed portion.
Following the partial Federal Circuit affirmance, US9608675B2 presents elevated FTO risk for manufacturers of 5G carrier-aggregation chipsets, RF front-end power management ICs, and multi-band transmit systems. The appellate endorsement of the patent’s validity on the affirmed claims means product teams can no longer rely on the pending challenge as a risk mitigant. A targeted FTO analysis against the patent’s affirmed claim scope is advisable before committing to designs that may incorporate simultaneous multi-signal power tracking architectures.
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