BiTMICRO LLC v. Western Digital: SSD Patent Suit Ends in Voluntary Dismissal
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📋 Case Summary
| Case Name | BiTMICRO LLC v. Western Digital Corp. et al. |
| Case Number | 8:24-cv-01903 (C.D. Cal.) |
| Court | U.S. District Court for the Central District of California |
| Duration | Sep 2024 – May 2025 266 days |
| Outcome | Plaintiff Dismissal – With Prejudice |
| Patents at Issue | |
| Accused Products | Western Digital SSDs (NVMe, SATA, Portable, Embedded) |
Case Overview
The Parties
⚖️ Plaintiff
Patent assertion entity (or operating company with IP licensing interests) holding a portfolio of patents related to flash storage and SSD architecture.
🛡️ Defendant
Among the world’s largest manufacturers of data storage solutions, including consumer, enterprise, and embedded SSDs under multiple brand families.
Patents at Issue
BiTMICRO asserted four U.S. patents spanning foundational SSD architecture and flash memory management technologies:
- • U.S. Patent No. 9,875,205 (App. No. 14/217,161)
- • U.S. Patent No. 9,135,190 (App. No. 12/876,113)
- • U.S. Patent No. 8,010,740 (App. No. 12/323,461)
- • U.S. Patent No. 7,716,389 (App. No. 11/378,762)
Developing SSD products?
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The Verdict & Legal Analysis
Outcome
BiTMICRO LLC voluntarily dismissed all claims against Western Digital Corp. and Western Digital Technologies, Inc. with prejudice, pursuant to FRCP 41(a)(1)(A)(i). No damages award was issued. No injunctive relief was granted or denied. No specific settlement terms were disclosed in the public record.
Key Legal Issues
The case resolved at the earliest possible procedural stage, under **FRCP 41(a)(1)(A)(i)**, meaning before Western Digital ever filed an answer or moved for summary judgment. This absence of responsive pleading means no claim construction, validity ruling, or infringement finding emerged, limiting this case’s direct precedential value. The with-prejudice designation permanently bars BiTMICRO from re-asserting the same claims based on the same patents against Western Digital.
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⚠️ Freedom to Operate (FTO) Analysis
This case highlights critical IP risks in SSD design. Choose your next step:
📋 Understand This Case’s Impact
Learn about the specific risks and implications from this litigation for SSD patents.
- View all 4 asserted patents in SSD technology
- See litigation patterns of BiTMICRO LLC
- Understand implications of early dismissal
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High Risk Area
Flash memory management and SSD architecture
4 Asserted Patents
In SSD architecture space
Design-Around Options
Available for most SSD architecture claims
✅ Key Takeaways
For Patent Attorneys & Litigators
Voluntary dismissal with prejudice under FRCP 41(a)(1)(A)(i) is a final, self-executing resolution — strategically distinct from settlement dismissals entered by court order.
Search related case law →No claim construction, validity ruling, or infringement finding emerged, limiting this case’s direct precedential value.
Explore precedents →For IP Professionals
Track BiTMICRO LLC’s patent portfolio (US9875205, US9135190, US8010740, US7716389) for continued assertion activity across the storage industry.
Monitor patent portfolios →Assess IPR vulnerability of asserted patents as a primary defensive lever in similar cases.
Evaluate IPR risk →For R&D Leaders
SSD product portfolio breadth creates expansive infringement exposure surfaces — FTO reviews should be conducted at the product family level, not individual SKUs.
Start FTO analysis for my product →Legacy SSD architecture patents remain commercially viable assertion instruments despite advancing technology generations.
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