Litigation Details for Samsung Electronics Co., Ltd. v. Netlist, Inc. (D. Del. 2021)

Samsung Electronics Co., Ltd. v. Netlist, Inc. (D. Del. 2021)

Docket		Date Filed	2021-10-15
Court	District Court, D. Delaware	Date Terminated
Cause	35:1 Patent Infringement	Assigned To	Jennifer L. Hall
Jury Demand	Both	Referred To	Jennifer L. Hall
Patents	10,183,003; 12,016,873
Link to Docket	External link to docket

Details for Samsung Electronics Co., Ltd. v. Netlist, Inc. (D. Del. 2021)

Date Filed	Document No.	Description	Snippet	Link To Document
2021-10-15				External link to document

Samsung Electronics Co., Ltd. v. Netlist, Inc. Litigation Analysis | 1:21-cv-01453

Last updated: February 19, 2026

This analysis details the ongoing patent litigation between Samsung Electronics Co., Ltd. and Netlist, Inc. concerning memory technologies, specifically focusing on U.S. Patent Nos. 9,077,312 and 8,977,512. The dispute centers on alleged infringement of these patents by Samsung's memory products. Netlist seeks damages and injunctive relief, while Samsung contests the validity and infringement of the asserted patents.

What Are the Key Patents in Dispute?

The primary patents at issue are U.S. Patent No. 9,077,312 (the "'312 patent") and U.S. Patent No. 8,977,512 (the "'512 patent").

• '312 Patent: Titled "System and method for power management in a memory module," this patent, originally filed on December 24, 2013, and issued on July 12, 2015, relates to reducing power consumption in memory modules by implementing specific power management techniques. Netlist alleges that Samsung's DDR4 and DDR5 memory modules infringe claims within this patent, particularly those related to efficient power states and management within the memory system.

• '512 Patent: Titled "Memory system," this patent, originally filed on December 24, 2013, and issued on May 12, 2015, also focuses on memory system architecture and operation. Netlist asserts that Samsung's memory products infringe claims that describe novel configurations and operational methods for memory modules, enhancing performance and efficiency.

What Are the Allegations of Infringement?

Netlist alleges that Samsung Electronics Co., Ltd. has infringed, and continues to infringe, the '312 patent and the '512 patent through the manufacturing, use, sale, and offer for sale of its memory products.

• '312 Patent Infringement Allegations: Netlist claims that Samsung's DDR4 and DDR5 Registered Dual In-line Memory Modules (RDIMMs) and Load-Reduced Dual In-line Memory Modules (LRDIMMs) incorporate technology that falls within the scope of the '312 patent's claims. Specifically, Netlist points to Samsung's implementation of power-saving features and operational modes within these memory modules, which Netlist contends are covered by its patent. The lawsuit claims that Samsung's products utilize methods and structures that are the same or equivalent to those claimed in the '312 patent, resulting in unauthorized use of Netlist's patented technology for power management.

• '512 Patent Infringement Allegations: Similarly, Netlist asserts that Samsung's DDR4 and DDR5 memory modules infringe claims within the '512 patent. This patent describes specific architectural elements and operational methodologies for memory systems. Netlist argues that the design and functionality of Samsung's memory modules embody the inventions claimed in the '512 patent, without authorization. The alleged infringement involves Samsung's commercialization of memory products that incorporate the claimed features and functions, thereby violating Netlist's exclusive rights.

What is Samsung's Defense Strategy?

Samsung's defense strategy primarily focuses on challenging the validity of Netlist's patents and disputing the claims of infringement.

• Patent Invalidity: Samsung contends that the asserted claims of both the '312 patent and the '512 patent are invalid. This defense often hinges on arguments that the claimed inventions were not novel or were obvious in light of prior art at the time of the patent filings. Samsung may present evidence of existing technologies, publications, or earlier patents that allegedly disclose the subject matter claimed by Netlist, rendering Netlist's patents invalid under U.S. patent law.

• Non-Infringement: Even if the patents are deemed valid, Samsung disputes that its products actually infringe the claims. This defense involves dissecting the claims of Netlist's patents and arguing that Samsung's accused memory modules do not contain all the limitations required by the patent claims, or that they operate in a manner that does not fall within the scope of the claims. Samsung will present technical arguments and potentially expert testimony to demonstrate that its products do not practice the patented inventions.

• Inevitable Disclosure and Prior Art: In related proceedings, particularly within the International Trade Commission (ITC), Samsung has also raised arguments concerning the "inevitable disclosure" of Netlist's technology and the relevance of prior art in establishing the non-infringement or invalidity of Netlist's patents. This includes scrutinizing the development timelines and knowledge within the industry, potentially indicating that the technologies claimed by Netlist were already in the public domain or in development by others.

What is the Procedural History of the Case?

The litigation between Samsung and Netlist has a multi-faceted procedural history, including district court actions and investigations before the International Trade Commission.

• District Court Case (1:21-cv-01453): This case was filed in the U.S. District Court for the District of Delaware on August 19, 2021. Netlist is the plaintiff, seeking damages for past infringement and injunctive relief against future infringement. Samsung is the defendant. The case involves claims related to the '312 and '512 patents.

• International Trade Commission (ITC) Investigations: Samsung has been involved in parallel investigations at the ITC. These investigations, such as Investigation No. 337-TA-1254, initiated in 2021, also concern Netlist's patents and alleged infringement by imported memory products. The ITC has the authority to issue exclusion orders that can block the importation of infringing goods into the United States. Samsung has actively defended against these ITC investigations.

• Claim Construction (Markman Hearings): A critical procedural step in patent litigation is claim construction, often referred to as a Markman hearing. This process involves the court interpreting the meaning and scope of the patent claims. The court's claim constructions in this case will significantly influence whether Samsung's products are found to infringe.

• Inter Partes Review (IPR) Proceedings: Samsung has also challenged the validity of Netlist's patents through IPR proceedings before the Patent Trial and Appeal Board (PTAB). The PTAB's decisions on patentability can affect the district court proceedings, potentially invalidating some or all of the asserted claims. For instance, Netlist's U.S. Patent No. 9,077,312 was challenged in an IPR proceeding where Samsung sought to invalidate certain claims.

What Are the Potential Outcomes and Implications?

The resolution of this litigation carries significant implications for both Netlist and Samsung, as well as the broader semiconductor memory market.

• For Netlist:

  • Financial Damages: A favorable ruling could result in substantial monetary damages, compensating Netlist for past infringement.
  • Injunctive Relief: An injunction could prevent Samsung from continuing to sell infringing products, potentially forcing design changes or product withdrawals.
  • Licensing Opportunities: A successful infringement finding could strengthen Netlist's position in negotiating future licensing agreements with other memory manufacturers.
  • Market Validation: Winning the case would validate Netlist's patent portfolio and its intellectual property strategy.

• For Samsung:

  • Continued Market Access: A defense victory would allow Samsung to continue selling its current memory products without restriction.
  • Avoidance of Damages: Samsung would avoid significant financial payouts for past infringement.
  • Freedom to Operate: Continued use of its current memory technologies would be secured.
  • Potential Design Changes: If found to infringe and an injunction is granted, Samsung would need to redesign its memory modules to avoid infringement, incurring R&D costs and potential product launch delays.

• For the Semiconductor Industry:

  • Precedent for Licensing: The outcome could set a precedent for how patent licensing and infringement are handled in the rapidly evolving memory technology sector.
  • Impact on Innovation: The case may influence R&D strategies, as companies assess the patent landscape and the potential for litigation when developing new memory technologies.
  • Market Competition: Restrictions on specific products could alter the competitive dynamics within the DRAM and NAND flash memory markets.

What Are the Key Technical Aspects Under Examination?

The litigation involves complex technical examination of memory architecture, power management, and operational protocols.

• Power Management Circuits and Methods: For the '312 patent, the court will scrutinize how memory modules manage power states, including standby, active, and low-power modes. This involves analyzing specific circuit designs and control logic responsible for power gating, voltage scaling, and power sequencing within the memory module and its interface with the host system. Samsung's power-saving features in DDR4 and DDR5 RDIMMs and LRDIMMs will be compared against the patented claims.

• Memory Module Architecture and Interconnects: The '512 patent relates to the structural organization and communication pathways within a memory system. Technical experts will examine aspects such as the arrangement of memory chips, the design of the memory bus, the implementation of error correction codes (ECC), and the signaling protocols used for data transfer. Netlist's allegations will focus on specific architectural configurations that allegedly embody the '512 patent.

• DDR4 and DDR5 Standards: The dispute is grounded in the widely adopted DDR4 and DDR5 memory standards. The technical analysis will consider how these industry standards are implemented by Samsung, and whether those implementations incorporate elements claimed by Netlist's patents, potentially going beyond the standard specifications or interpreting standard features in a way that overlaps with Netlist's claims.

• Prior Art Analysis: A significant technical component is the examination of prior art. This includes reviewing existing patents, academic papers, industry specifications, and products that were available before the priority dates of Netlist's patents. The goal is to determine if Netlist's claimed inventions were already known or would have been obvious to a person skilled in the art.

What Are the Notable Filings and Arguments?

Several key filings and arguments have shaped the course of this litigation.

• Netlist's Complaint: The initial complaint in 1:21-cv-01453 outlines the specific patent claims asserted and the general nature of Samsung's alleged infringing activities. It details how Samsung's DDR4 and DDR5 RDIMM and LRDIMM products are accused of infringing the '312 and '512 patents.

• Samsung's Answer and Counterclaims: Samsung's responsive filings typically deny infringement and assert affirmative defenses, including patent invalidity. Counterclaims might be filed if Samsung believes Netlist's actions constitute other legal violations, although invalidity is a primary defense.

• PTAB Decisions on IPRs: Decisions from the PTAB on Samsung's petitions for Inter Partes Review of Netlist's patents are critical. If the PTAB finds certain claims unpatentable, those claims may be removed from consideration in the district court. Conversely, if the PTAB upholds the claims, the district court litigation will proceed on those claims.

• ITC Initial and Final Determinations: Findings from the ITC investigations (e.g., 337-TA-1254) provide parallel rulings on infringement and validity. These decisions, while distinct from district court judgments, can influence the overall litigation strategy and outcomes.

• Claim Construction Orders (Markman Rulings): The district court's orders following Markman hearings define the scope of the asserted patent claims. These rulings are pivotal, as they dictate the legal standard against which Samsung's products are measured for infringement.

Key Takeaways

• The litigation involves U.S. Patent Nos. 9,077,312 and 8,977,512, focusing on memory module power management and architecture.
• Netlist alleges Samsung's DDR4 and DDR5 RDIMMs and LRDIMMs infringe these patents.
• Samsung defends by challenging patent validity and denying infringement.
• The case is proceeding in the U.S. District Court for the District of Delaware (1:21-cv-01453), with parallel actions at the ITC and prior PTAB reviews.
• Claim construction and prior art analysis are central technical and legal issues.
• Outcomes will impact Netlist's financial recovery and market position, Samsung's product lines and R&D, and broader industry practices.

Frequently Asked Questions

What is the current status of U.S. Patent No. 9,077,312 in the district court case?

The '312 patent is an active subject of the litigation in 1:21-cv-01453. Netlist asserts that Samsung's memory products infringe this patent. The court will conduct claim construction, and potentially a jury trial, to determine validity and infringement of the asserted claims.

Has the Patent Trial and Appeal Board (PTAB) made any final decisions on Samsung's challenges to Netlist's patents?

Yes, the PTAB has reviewed challenges to Netlist's patents through Inter Partes Review (IPR) proceedings. The outcomes of these IPRs, which may declare claims invalid or uphold their patentability, significantly influence the ongoing district court litigation. Specific IPR decisions related to the '312 patent and others have been issued.

What is the significance of the International Trade Commission (ITC) investigations for this litigation?

ITC investigations, such as Investigation No. 337-TA-1254, can lead to exclusion orders blocking the import of infringing products. While ITC findings are separate from district court judgments, they represent a parallel venue where patent rights are adjudicated and can create pressure on the defendant or provide leverage to the patent holder.

How does claim construction impact the Samsung v. Netlist case?

Claim construction, established through Markman hearings, defines the precise meaning and scope of the patent claims at issue. A narrower construction can make it harder for Netlist to prove infringement, as Samsung's products may be found not to fall within the limited scope. Conversely, a broader construction favors Netlist.

What are the potential financial implications for Samsung if they are found to infringe?

If Samsung is found to infringe, it could face significant financial penalties, including past damages calculated based on lost profits or a reasonable royalty. Additionally, an injunction could force Samsung to redesign its products or cease sales, leading to indirect costs related to product development and market disruption.

Citations

[1] U.S. District Court for the District of Delaware. (2021). Samsung Electronics Co., Ltd. v. Netlist, Inc. Case No. 1:21-cv-01453. [2] United States Patent and Trademark Office. (2015). U.S. Patent No. 9,077,312. [3] United States Patent and Trademark Office. (2015). U.S. Patent No. 8,977,512. [4] International Trade Commission. (2021). Investigation No. 337-TA-1254. [5] Patent Trial and Appeal Board. (Various Dates). Decisions on petitions for Inter Partes Review concerning Netlist patents.