Wolfspeed Inc. v. Navitas Semiconductor Corp.

Wolfspeed Inc. has initiated a patent infringement lawsuit against Navitas Semiconductor Corp. in the United States District Court for the District of Delaware. Wolfspeed, an American operating company, is a prominent developer and manufacturer of wide-bandgap semiconductors, specializing in silicon carbide (SiC) materials and devices for various power applications, including electric vehicles, renewable energy, and industrial systems. Navitas, also an operating company, operates on a fabless model, focusing on designing wide-bandgap power devices utilizing both gallium nitride (GaN) and silicon carbide (SiC) technologies for products such as fast chargers, adapters, power supplies, and automotive applications.

The lawsuit alleges that a broad range of Navitas's products infringe upon multiple Wolfspeed patents. Specifically, the accused products include Navitas's GaN-based FETs, such as their GaNFast®, GaNSlim™, and GaNSafe® product families, as well as their GeneSiC™ MOSFETs and SiCPAK® modules. The asserted patents by Wolfspeed are U.S. Patent Nos. 8,169,005, 10,998,418, 10,886,396, 10,749,443, and 11,888,392. These patents generally pertain to wide-bandgap semiconductor technologies, including silicon carbide materials, gallium nitride-based transistors, and silicon carbide-based MOSFETs and modules, which are core to both companies' product offerings. A specific one-line technical sketch for each individual patent was not directly available from the immediate search results; however, given Wolfspeed's stated focus, these patents likely cover advancements in power semiconductor device structures, fabrication, or applications that leverage the high-efficiency properties of SiC and GaN.

The case, filed on 2026-07-07, is in its early stages in the District of Delaware. While a specific judge has not been publicly reported yet, the District of Delaware is a favored venue for patent litigation due to its judges' extensive experience in complex technical cases, its reliable docket management, and a well-developed body of patent-specific precedent. This litigation is notable as it pits two key players in the rapidly expanding wide-bandgap semiconductor market against each other. The dispute highlights intense competition in a segment critical for electric vehicles, renewable energy, and industrial power conversion, where intellectual property and design wins offer significant long-term advantages. Wolfspeed emphasizes it is taking "decisive action to protect its foundational GaN and SiC intellectual property portfolio," asserting that its patents represent decades of innovation and investment. The lawsuit seeks a permanent injunction barring the production, import, and sale of the accused Navitas products in the U.S., along with compensation for damages. As of the current date, no related inter partes review (IPR) proceedings at the PTAB are known for this recently filed case.

Wolfspeed Inc. initiated a patent infringement lawsuit against Navitas Semiconductor Corp. in the United States District Court for the District of Delaware on July 7, 2026. The complaint alleges that Navitas's GaN-based FETs (including GaNFast®, GaNSlim™, and GaNSafe® product families) and its GeneSiC™ MOSFETs and SiCPAK® modules infringe multiple Wolfspeed patents, including US Patent 10,886,396, along with US Patent Nos. 8,169,005, 10,998,418, 10,749,443, and 11,888,392.

As of the current date (2026-07-09), the case is in its very nascent stages. Navitas Semiconductor issued a public statement on July 8, 2026, disputing the infringement allegations and characterizing them as "baseless." Navitas affirmed its intention to "vigorously defend" itself and its products, expressing confidence that it will prevail in the litigation. The company also highlighted its own extensive global intellectual property portfolio, comprising over 300 issued or pending patents, and emphasized its history of independent innovation.

Given the recent filing date, no further significant legal developments such as answers, counterclaims, pre-trial motions (e.g., motions to dismiss, transfer, or stay), claim construction (Markman) proceedings, discovery milestones, trial events, or appeals have yet occurred. Similarly, no parallel PTAB IPR/PGR proceedings specifically initiated in response to this particular lawsuit have been identified at this early juncture. The litigation is ongoing and has just begun.

Counsel for Wolfspeed Inc. Not Yet Publicly Available for Delaware Case

As of July 9, 2026, the specific counsel of record representing Wolfspeed Inc. in its patent infringement lawsuit against Navitas Semiconductor Corp. in the United States District Court for the District of Delaware (Case No. 1:26-cv-00840) has not been publicly identified through general web searches of legal news sites, press releases, or publicly accessible docket summaries.

The lawsuit was filed on July 7, 2026. Given the very recent filing date, detailed attorney appearance information, including names, roles, and firms, may not yet be widely indexed or readily available without direct access to the court's Electronic Case Files (ECF) system, such as PACER. Therefore, it is not possible to provide the requested details about Wolfspeed's counsel at this time.

Navitas Semiconductor Corp. has acknowledged the patent infringement lawsuit filed by Wolfspeed Inc. and stated its intention to "vigorously defend" itself and its products. As of July 9, 2026, the public record does not yet explicitly name external counsel of record who have formally appeared on behalf of Navitas Semiconductor Corp. in the United States District Court for the District of Delaware for case 1:26-cv-00921. Filings detailing counsel appearances may not yet be publicly available.

However, Matthew Sant serves as the Senior Vice President, General Counsel, and Secretary for Navitas Semiconductor. He joined Navitas in September 2025 and has extensive experience in the semiconductor industry, having previously worked at Broadcom Corporation and Skyworks Solutions. His past experience also includes being a partner at Irell & Manella LLP, where he was involved in corporate securities and intellectual property departments. While Mr. Sant is in-house counsel, external litigation counsel would typically be retained to represent Navitas in a patent infringement suit in district court. Once appearances are made on the court's docket, the specific law firms and attorneys representing Navitas will be identifiable.