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ParkerVision Completes Appeal Briefing

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πŸ›οΈ ParkerVision has completed filing its final appellate brief regarding a patent infringement dispute with Qualcomm.

βš–οΈ The appeal concerns a district court ruling that forced ParkerVision to stipulate non-infringement due to an "issue preclusion" order.

πŸ“‰ Qualcomm originally argued down-conversion must occur at or after a capacitor in prior case construction.

πŸ”„ In its latest Federal Circuit filing, Qualcomm now contends the case is not about down-conversion location at all.

⚠️ ParkerVision asserts this contradictory legal shift by Qualcomm invalidates the basis for the earlier non-infringement stipulation.

πŸ“œ The company argues issue preclusion cannot apply because the two cases were decided on fundamentally different legal issues.

⛓️ If successful, the appeal could reverse the district court judgment and allow ParkerVision's case to proceed to trial.

🎀 CEO Jeffrey Parker criticized Qualcomm for attempting to rewrite patent interpretations after previously relying on them.

πŸ—£οΈ Qualcomm had long claimed non-infringement based on ParkerVision using switches for down-conversion, which matches the current patents.

πŸ“ Oral arguments are scheduled to take place at the U.S. Court of Appeals for the Federal Circuit in Washington DC.

⏳ The Federal Circuit's decision could determine if ParkerVision finally resolves a decade-long litigation saga.

πŸ“„ Full appellate briefings are available for review via a public link provided in the announcement.

πŸ”¬ ParkerVision specializes in radio frequency (RF) technologies for advanced wireless communication systems.

πŸ“œ The company holds an extensive patent portfolio across the U.S. and international jurisdictions.

πŸ“ˆ OTCQB:PRKR is the ticker symbol for ParkerVision on the OTCQB market.

βš–οΈ This announcement classifies as a "forward-looking statement" subject to standard securities litigation risk disclosures.

Bullish Signals
  • ParkerVision has completed appellate briefing, advancing its patent infringement case against Qualcomm to the U.S. Court of Appeals for the Federal Circuit.
  • The appeal briefs highlight a critical contradiction in Qualcomm's filing that calls into question the basis of the non-infringement stipulation and the district court's judgment.
  • ParkerVision argues that Qualcomm has taken a fundamentally different position on down-conversion than previously argued, which could eliminate issue preclusion and allow the case to proceed to trial.
  • The Federal Circuit's decision in this appeal could determine whether ParkerVision receives its day in court after more than a decade of litigation, offering significant upside potential.
  • ParkerVision holds an extensive patent portfolio in the U.S. and internationally, continuing to pursue licensing and enforcement strategies to protect its intellectual property rights.
Risk Factors
  • ParkerVision states Qualcomm has made a 'critical contradiction' in its appeal brief that calls into question the foundation of the non-infringement stipulation and existing judgment.
  • The appellate court is only at the briefing stage with oral arguments pending in Washington DC, meaning the outcome remains uncertain and could take considerable time to resolve after more than a decade of litigation.
  • ParkerVision's claims depend on the Federal Circuit reversing issue preclusion, which is an uphill battle that requires the appellate court to find the district court's reasoning fundamentally flawed.
  • The company faces significant timing risks given that forward-looking statements regarding appeal outcomes are subject to uncertainties beyond its control and could cause actual results to differ materially.
  • If the Federal Circuit does not recognize the alleged contradiction in Qualcomm's position, ParkerVision may remain bound by a judgment based on issue preclusion without receiving a jury trial.
Full Analysis
ParkerVision, Inc. (OTCQB:PRKR) announced on March 25, 2026, that it has completed appellate briefing regarding its patent infringement case against Qualcomm at the U.S. Court of Appeals for the Federal Circuit in Washington DC. The appeal centers on a claim construction ruling from the Orlando district court that forced ParkerVision to stipulate to non-infringement and seek expedited appellate review. In its final brief, ParkerVision argues that Qualcomm's filing reveals a critical contradiction in the basis for the previous non-infringement order. The core of ParkerVision's legal argument involves a shift in Qualcomm's position regarding signal "down-conversion" limitations within ParkerVision's patents. For years, Qualcomm contended that these patents required down-conversion to occur at or after a capacitor. However, during the district court proceedings, despite Federal Circuit guidance, the judge read in a "generating" limitation, allowing Qualcomm to claim the patents were effectively the same as those in an earlier case due to issue preclusion. This logic led directly to the non-infringement stipulation and the subsequent judgment. In its recent appellate filing, Qualcomm now argues that the case is not about where down-conversion occurs at all, fundamentally altering their stance on what was previously a contested technical limitation. ParkerVision asserts this shift is legally decisive because it suggests the earlier case was decided on different issues, rendering issue preclusion inapplicable. The company claims its patents clearly establish down-conversion occurs at a switch, consistent with Qualcomm's long-held defense that they do not infringe because they use switches for this function. ParkerVision CEO Jeffrey Parker stated, "For years now Qualcomm has argued that ParkerVision's patent claims require down-conversion in a specific location and now in their own brief for the first time they claim that was never the argument." He emphasized that allowing Qualcomm to rewrite patents based on shifting arguments would undermine fundamental fairness and consistency, arguing the case should instead be sent back for trial before a jury. The next procedural step involves oral arguments at the Federal Circuit, with the potential to determine whether ParkerVision receives its day in court after more than a decade of litigation.