HP v. Inspur Group: 5-Patent Server Infrastructure Dispute Settles in N.D. California
Hewlett-Packard filed suit against Chinese server maker Inspur Group in April 2024, asserting five US patents covering server architecture, memory management, and data center infrastructure against 15 Inspur rack server models and ISPIM management software. The case resolved via stipulated settlement and was dismissed with prejudice after 351 days before Judge Jon S. Tigar.
HP enforces server IP portfolio against Inspur’s US rack server line
Hewlett-Packard, Co. filed this patent infringement action on April 15, 2024 in the Northern District of California against Inspur Group Co., Ltd., a major Chinese server and data center hardware manufacturer. The complaint asserted five US patents — US7634671B2, US8218566B2, US8108508B1, US8335891B2, and US9229737B2 — covering server architecture, memory subsystem management, and infrastructure control technology. The accused products included at least 15 Inspur rack server SKUs across the KR and NF series, as well as Inspur’s Physical Infrastructure Manager (ISPIM) software platform.
The case concluded on April 1, 2025 when the parties filed a stipulated motion to stay all pending deadlines and notice of settlement. Judge Jon S. Tigar granted the motion and dismissed the matter with prejudice, meaning HP cannot re-file the same claims against Inspur on these patents. The court’s order included a 60-day unwind clause: if either party filed a notice that settlement had not in fact occurred after meeting and conferring, the dismissal order would be vacated — a standard protective mechanism in conditional settlement orders.
At 351 days, the case resolved faster than many multi-patent district court disputes, suggesting the parties reached commercial terms relatively efficiently once litigation pressure was established. The financial terms, licensing structure, and any ongoing royalty obligations remain confidential and are not reflected in the public docket. It is unclear from the record whether HP secured a cross-license, a lump-sum payment, or a market-exit commitment from Inspur regarding the US server market.
Filing to Case Stayed in 351 days
351 days — resolved within one year, faster than the N.D. California patent median
Dismissed with prejudice: what the stipulated settlement means for both parties
Dismissal with prejudice bars HP from re-asserting these claims
A dismissal with prejudice is a final adjudication on the merits for res judicata purposes. HP cannot refile infringement claims against Inspur based on the same five patents and accused products. The stipulated nature of the dismissal confirms both parties agreed to end the litigation, distinguishing this from a unilateral withdrawal. The 60-day unwind clause suggests the settlement agreement itself was still being executed at the time of the court order.
Dismissed with prejudiceHP converts litigation pressure into undisclosed settlement terms
By securing a with-prejudice dismissal, HP closed the case on terms it accepted. The five asserted patents remain valid and enforceable against third parties — the settlement does not impair HP’s ability to assert these patents in future actions against different defendants. What HP received from Inspur (monetary compensation, licensing, or behavioral commitments) is not in the public record, but the swift resolution is consistent with HP achieving commercially acceptable terms.
Patents remain enforceableInspur avoids a public merits ruling but faces ongoing HP portfolio risk
Inspur avoided a jury verdict or claim construction ruling that could have set adverse precedent. The with-prejudice dismissal resolves this specific dispute, but Inspur remains exposed to HP’s broader IP portfolio if it continues selling accused server lines or software in the US. The absence of any invalidity counterclaim resolution means Inspur did not secure a formal finding that HP’s patents are invalid — a meaningful limitation on its freedom to operate going forward.
No invalidity ruling securedServer IP enforcement against Chinese OEMs is an escalating dynamic
This case is consistent with a broader pattern of US server and data center incumbents using patent portfolios to manage competitive pressure from Chinese hardware manufacturers entering US enterprise markets. The 15 accused Inspur SKUs represent a substantial portion of its US rack server catalog. Competitors and distributors in the x86 server market should note that HP’s five asserted patents survived without any invalidity challenge reaching resolution, suggesting continued enforcement risk across the sector.
Enforcement risk persistsFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Hewlett-Parkard, Co. | Company | Global enterprise technology company — holder of US7634671B2 and 4 further server infrastructure patentsSearch in Eureka ↗ |
| Defendant | Inspur Group Co., Ltd. | Company | Inspur Group Co., Ltd. — Chinese multinational server and data center hardware manufacturerSearch in Eureka ↗ |
| Plaintiff counsel | Aima Mori | Attorney | Counsel for Hewlett-Parkard, Co.Search in Eureka ↗ |
| Plaintiff counsel | Amy Lydon | Attorney | Counsel for Hewlett-Parkard, Co.Search in Eureka ↗ |
| Plaintiff counsel | Angela Whitesell | Attorney | Counsel for Hewlett-Parkard, Co.Search in Eureka ↗ |
| Plaintiff counsel | Brent K. Yamashita | Attorney | Counsel for Hewlett-Parkard, Co.Search in Eureka ↗ |
| Plaintiff counsel | Claire E. Schuster | Attorney | Counsel for Hewlett-Parkard, Co.Search in Eureka ↗ |
| Plaintiff counsel | Erin P Gibson | Attorney | Counsel for Hewlett-Parkard, Co.Search in Eureka ↗ |
| Plaintiff counsel | Helena Drake Kiepura | Attorney | Counsel for Hewlett-Parkard, Co.Search in Eureka ↗ |
| Plaintiff counsel | Michael L. Burns , IV | Attorney | Counsel for Hewlett-Parkard, Co.Search in Eureka ↗ |
| Plaintiff counsel | Michael Saulnier | Attorney | Counsel for Hewlett-Parkard, Co.Search in Eureka ↗ |
| Plaintiff counsel | Sean C. Cunningham | Attorney | Counsel for Hewlett-Parkard, Co.Search in Eureka ↗ |
| Plaintiff counsel | Stephanie Mary Piper | Attorney | Counsel for Hewlett-Parkard, Co.Search in Eureka ↗ |
| Plaintiff law firm | DLA Piper US LLP | Law Firm | Representing Hewlett-Parkard, Co.Search in Eureka ↗ |
| Defendant counsel | Andrew Samuels | Attorney | Counsel for Inspur Group Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Kevin W. Kirsch | Attorney | Counsel for Inspur Group Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Victoria Leigh Weatherford | Attorney | Counsel for Inspur Group Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Yuanyuan Qin | Attorney | Counsel for Inspur Group Co., Ltd.Search in Eureka ↗ |
| Defendant law firm | Baker & Hostetler, LLP | Law Firm | Representing Inspur Group Co., Ltd.Search in Eureka ↗ |
| Presiding judge | Judge Jon S. Tigar | Judge | California Northern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order reflects a conditional dismissal mechanism: the with-prejudice termination is granted on the strength of the parties’ joint settlement notice, but remains subject to a 60-day cure window. The phrasing ‘dismissed with prejudice’ carries full res judicata effect once the unwind period expires without challenge. Notably, the order does not contain any merits findings — no claim construction, no liability determination, and no damages assessment entered the record. This is a procedurally clean exit for both parties, preserving HP’s patent validity and leaving Inspur without any defensive invalidity holding.
US7634671B2 and 4 further patents — server architecture and infrastructure management
The five asserted patents — US7634671B2, US8218566B2, US8108508B1, US8335891B2, and US9229737B2 — span application dates from the late 1990s through the early 2010s, reflecting HP’s longstanding R&D in enterprise server architecture and data center management. The portfolio covers technical domains including server fault resilience, memory subsystem control, network processing within server environments, boot and configuration management, and physical infrastructure monitoring software — the latter directly implicated by Inspur’s ISPIM platform.
For competitors in the x86 rack server market, this portfolio represents a strategic enforcement asset that HP has now demonstrated willingness to deploy against Chinese OEMs selling into US enterprise channels. The breadth of accused products — 15 SKUs across multiple generations — suggests HP conducted a thorough mapping exercise before filing. Any server manufacturer whose products implement comparable fault tolerance, memory management, or infrastructure monitoring functions should treat these patent families as material FTO risks, particularly given that no claim narrowing occurred during this litigation.
Should you run an FTO against US7634671B2 and HP’s server infrastructure portfolio?
If your organisation designs, manufactures, imports, or resells rack servers, blade systems, or infrastructure management software in the US, HP’s five-patent portfolio asserted in this case warrants a formal FTO assessment. The accused Inspur products span entry-level to high-density configurations, suggesting the patents read broadly across server form factors — not merely premium or hyperscale deployments. Software-side risk from the ISPIM infringement theory also implicates vendors of BMC, DCIM, or physical infrastructure management platforms.
PatSnap Eureka’s FTO Search Agent allows R&D and IP teams to map product features against the claim landscapes of US7634671B2, US8218566B2, US8108508B1, US8335891B2, and US9229737B2 simultaneously. Eureka surfaces prosecution history, claim amendments, and related continuation families — critical context given that no court-ordered claim construction is available from this case to guide interpretation. Use Eureka to identify design-around opportunities and assess whether successor product generations fall within the asserted claim scope.
Run a freedom-to-operate analysis on US7634671B2 to assess your product’s exposure
Run FTO in Eureka →Related server infrastructure patent disputes in N.D. California and beyond
Cases involving server architecture, data center management patents, and Chinese OEM defendants in US federal courts — especially N.D. California — follow a recurring enforcement pattern.
What this case signals for the server and data center IP landscape
HP’s swift settlement with Inspur reinforces the leverage that incumbent US server OEMs hold over emerging Chinese competitors in the US enterprise market.
Multi-patent filing against broad product lines maximises settlement leverage
Asserting five patents across 15 SKUs and a software platform creates a large damages surface and raises the cost of defence. This approach — well-executed by DLA Piper for HP — signals to defendants that trial preparation costs will be substantial. Companies facing similar portfolios should conduct early FTO assessments before entering contested US markets.
With-prejudice settlement preserves HP’s patent enforceability against third parties
The dismissal terms leave HP’s five patents fully intact and enforceable against other server manufacturers. No claim construction order, no invalidity finding, and no narrowing of claim scope entered the record. For competitors in the rack server and ISPIM-equivalent software space, this outcome strengthens — not weakens — the threat posed by HP’s portfolio.
Hewlett-Parkard v Inspur — key questions answered
HP asserted five US patents: US7634671B2, US8218566B2, US8108508B1, US8335891B2, and US9229737B2. These patents cover server architecture, memory and cache management, network processing, configuration management, and physical infrastructure management software. All five patents were asserted against a range of Inspur rack server SKUs and the ISPIM software platform.
The case was dismissed with prejudice on April 1, 2025 following a stipulated motion to stay and notice of settlement filed by both parties. Judge Jon S. Tigar granted the motion and closed the file. The financial and licensing terms of the settlement are not publicly disclosed. A 60-day unwind clause was included, allowing the order to be vacated if settlement did not close within that period.
HP accused 15 Inspur rack server models — including the KR1180, KR1280, KR2180, KR2260, KR2280, KR2460, KR4480, KR6680 series in multiple variants, plus the NF5280M5 and NF5180M5 — as well as the Inspur Physical Infrastructure Manager (ISPIM) software. The breadth of accused SKUs suggests HP’s patents were asserted to cover a wide range of server configurations rather than a single product generation.
No. A with-prejudice dismissal only bars HP from reasserting the same claims against Inspur on the same facts. HP’s five asserted patents remain valid and fully enforceable against any other party. No invalidity finding, no claim construction order, and no narrowing of patent scope was entered during this litigation, leaving HP’s enforcement options against third parties completely intact.
Judge Tigar’s order stated it would be vacated if any party filed a notice — after meeting and conferring — that settlement had not occurred within 60 days of April 1, 2025. This clause is a standard protective mechanism used when parties file a settlement notice before executing final documentation. If no such notice was filed by approximately June 1, 2025, the dismissal with prejudice became unconditional and the case is permanently closed.
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