SLS Manager Technologies v. Cisco Systems — Dismissed With Prejudice After 217 Days
SLS Manager Technologies, LLC asserted four secure location session manager patents against Cisco Systems, Inc. in the Western District of Texas. The parties jointly stipulated to dismissal with prejudice, ending the case in under eight months — a notably swift resolution for a four-patent infringement action against one of networking’s largest defendants.
Four-patent Cisco case exits quickly via stipulated dismissal
On 20 July 2023, SLS Manager Technologies, LLC filed a patent infringement action against Cisco Systems, Inc. in the U.S. District Court for the Western District of Texas (Case No. 6:23-cv-00517), presided over by Chief Judge Alia Moses. The complaint asserted four patents — US7974235B2, US9398449B2, US8687511B2, and US9763084B2 — all directed to secure location session manager technology. Cisco, represented by Winston & Strawn LLP, is one of the world’s dominant networking and communications infrastructure vendors, making it a high-profile target in this technology space.
The case concluded on 22 February 2024 when Chief Judge Moses signed an order granting a stipulated motion to dismiss with prejudice, filed by plaintiff’s counsel Joseph J. Zito of Whitestone Law and William P. Ramey III of Ramey LLP. A stipulated dismissal with prejudice means both parties agreed to the termination and the plaintiff is permanently barred from reasserting the same claims against Cisco. A USPTO patent/trademark report was simultaneously transmitted, a standard procedural step upon case closure.
The 217-day duration — roughly seven months — is notably brief for a four-patent assertion against a defendant of Cisco’s scale and legal resources. Cases of this complexity in the Western District of Texas typically extend well beyond a year when contested. The swift resolution is consistent with a private settlement reached before substantial motion practice, though the public record is silent on financial terms. What remains unknown is whether any licensing arrangement was reached and whether SLS Manager Technologies pursues similar claims against other defendants in the networking sector.
Filing to dismissal in 217 days
217 days — faster than most comparable multi-patent district court actions
Stipulated dismissal with prejudice — what it means for both parties
Stipulated dismissal: both parties agreed to end the case
A stipulated dismissal differs from a unilateral voluntary dismissal — both Cisco and SLS Manager Technologies jointly moved to terminate the litigation. This mutual agreement suggests the parties reached an accommodation, most commonly a settlement or licensing arrangement, though no financial terms appear in the public docket. The court’s role was ministerial: Chief Judge Moses granted the motion as filed.
Bilateral agreement to closeWith prejudice — SLS Manager’s claims are permanently extinguished against Cisco
Dismissal with prejudice carries a critical legal consequence: SLS Manager Technologies is permanently barred from filing another action against Cisco on the same four patent claims. This is a stronger termination than a without-prejudice dismissal, which would preserve the right to refile. For Cisco, the with-prejudice designation provides finality and eliminates residual litigation risk on these specific patents from this plaintiff.
No refiling against CiscoPatent office notified — standard administrative closure step
On the same day the dismissal order was entered, the court transmitted a Report on Patent/Trademark to the USPTO. This is a routine procedural requirement under 35 U.S.C. § 290, which mandates that district courts notify the USPTO of patent suits and their outcomes. It does not affect patent validity or ownership and carries no independent legal consequence for either party beyond administrative record-keeping.
Administrative procedure only217-day close suggests early resolution before substantive litigation
The case closed before typical milestones such as a Markman claim construction hearing or substantive motions on validity. In the Western District of Texas, docket timelines for four-patent cases against sophisticated defendants rarely compress to under eight months without early settlement pressure or a pre-existing licensing negotiation. The speed here is consistent with — though does not confirm — a negotiated outcome reached shortly after filing.
Pre-Markman resolution likelyFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | SLS Manager Technologies, LLC | Company | Patent assertion entity — holder of US7974235B2 and 3 further secure session management patentsSearch in Eureka ↗ |
| Defendant | Cisco Systems, Inc. | Company | Cisco Systems, Inc. — global networking and communications infrastructure leaderSearch in Eureka ↗ |
| Plaintiff counsel | Joseph J. Zito | Attorney | Counsel for SLS Manager Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | William P. Ramey , III | Attorney | Counsel for SLS Manager Technologies, LLCSearch in Eureka ↗ |
| Defendant counsel | Christopher Thomas Gresalfi | Attorney | Counsel for Cisco Systems, Inc.Search in Eureka ↗ |
| Defendant counsel | Krishnan Padmanabhan | Attorney | Counsel for Cisco Systems, Inc.Search in Eureka ↗ |
| Defendant counsel | Saranya Raghavan | Attorney | Counsel for Cisco Systems, Inc.Search in Eureka ↗ |
| Presiding judge | Judge Alia Moses | Chief Judge | Texas Western District Court — Chief JudgeSearch in Eureka ↗ |
Stipulation of dismissal — official text
The dismissal was entered by stipulation — meaning both parties agreed to terminate — and was granted with prejudice by Chief Judge Alia Moses. The with-prejudice designation is the legally significant element: it operates as a final judgment on the merits for preclusion purposes, permanently foreclosing SLS Manager Technologies from asserting the same four patents against Cisco in any future action. The simultaneous USPTO notification is procedural only and does not alter this outcome.
US7974235B2 and 3 further patents — secure location session manager technology
The four patents asserted — US7974235B2, US9398449B2, US8687511B2, and US9763084B2 — form a related portfolio directed to secure location session management technology. The application numbers span filings from the US11, US13, and US14 series, suggesting a multi-generational family developed across roughly a decade. This technology domain broadly covers systems and methods for managing secure communications sessions with location-awareness components, relevant to enterprise networking, unified communications, and security infrastructure products.
The strategic importance of this portfolio lies in its breadth across a product category that underpins much of Cisco’s enterprise networking and collaboration stack. Secure session management is foundational to SD-WAN, Unified Communications (UC), and zero-trust network access (ZTNA) architectures — all high-growth segments where Cisco competes aggressively. Assertion of four related patents simultaneously suggests the portfolio was structured to create claim coverage across multiple technical implementations, increasing settlement pressure and complicating invalidity defences.
Should your team run an FTO against this secure session management portfolio?
Any organisation developing or deploying secure location session management capabilities — including SD-WAN vendors, UCaaS providers, enterprise security platform operators, and network access control (NAC) vendors — should assess exposure to this four-patent family. The with-prejudice dismissal resolves Cisco’s specific exposure but leaves the portfolio available for assertion against other defendants. Related continuation or divisional patents may extend coverage further.
PatSnap Eureka’s FTO Search Agent allows R&D and IP teams to map product features against the claims of US7974235B2, US9398449B2, US8687511B2, and US9763084B2 and their known family members in minutes. Claim monitoring alerts can be configured to flag any new continuation applications or related filings from SLS Manager Technologies, ensuring your team receives early notice before a complaint is filed.
Run a freedom-to-operate analysis on US7974235B2 to assess your product’s exposure
Run FTO in Eureka →Similar secure networking patent cases in the Western District of Texas
PatSnap Eureka tracks related litigation across truck body equipment, vehicle accessories, and comparable infringement actions in the Georgia district system.
What this case signals for the secure networking IP landscape
A swift, prejudicial exit against Cisco raises questions about enforcement strategy and the four patents’ remaining assertability.
Ramey LLP’s filing pattern warrants monitoring by networking vendors
William P. Ramey III and Ramey LLP are prolific filers in the Western District of Texas. Organisations in the networking and communications sector should track new filings from this firm against peers, as assertion campaigns of this type often involve related entities holding related patents. Early monitoring allows faster FTO responses and pre-filing licensing strategy.
Four patents asserted — check family members for continuing exposure
Dismissal with prejudice extinguishes claims on the four asserted patents against Cisco, but does not affect continuation patents, divisional applications, or related family members. Companies offering secure session management or location-aware networking products should audit the families of US7974235B2, US9398449B2, US8687511B2, and US9763084B2 for unexpired or pending continuations.
SLS v Cisco — key questions answered
SLS Manager Technologies, LLC filed a patent infringement suit against Cisco Systems, Inc. on 20 July 2023 in the Western District of Texas, asserting four secure location session manager patents. The case was dismissed with prejudice on 22 February 2024 after both parties filed a joint stipulation of dismissal, 217 days after filing.
SLS Manager Technologies asserted four patents: US7974235B2, US9398449B2, US8687511B2, and US9763084B2. All relate to secure location session manager technology. The application numbers suggest a multi-generational family spanning roughly a decade of prosecution activity.
Dismissal with prejudice means SLS Manager Technologies is permanently barred from asserting the same four patents against Cisco in any future litigation. It operates as a final judgment for preclusion purposes. Cisco receives complete finality on these specific claims. No financial terms were disclosed in the public docket.
The public docket does not disclose settlement terms. However, the stipulated nature of the dismissal — filed jointly and with prejudice — is consistent with a private resolution, typically a licensing agreement or lump-sum payment. Neither party has made a public statement confirming or denying a financial arrangement.
SLS Manager Technologies was represented by Joseph J. Zito of Whitestone Law and William P. Ramey III of Ramey LLP. Cisco Systems was represented by Christopher Thomas Gresalfi, Krishnan Padmanabhan, and Saranya Raghavan of Winston & Strawn, LLP. Chief Judge Alia Moses presided over the case in the Western District of Texas.
PatSnap Eureka searches patents and litigation data to answer instantly.