XODUS MEDICAL v. Mullen: Surgical Pad Patent Case Ends in Dismissal
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📋 Case Summary
| Case Name | XODUS MEDICAL, Inc. v. Mark Mullen |
| Case Number | 7:21-cv-00727 |
| Court | U.S. District Court for South Carolina |
| Duration | Mar 2021 – Jan 2026 4 years 10 months |
| Outcome | Dismissed Without Prejudice |
| Patents at Issue | |
| Accused Products | SurgyPad |
Case Overview
After nearly five years of litigation spanning 1,770 days, XODUS MEDICAL, Inc. v. Mark Mullen concluded not with a courtroom verdict but with a stipulated dismissal without prejudice — a resolution that raises as many strategic questions as it answers. Filed on March 12, 2021, in the U.S. District Court for South Carolina under Case No. 7:21-cv-00727, the case centered on three U.S. patents covering surgical positioning and patient protection technology, with XODUS MEDICAL alleging infringement tied to its proprietary **SurgyPad** product line.
For patent attorneys tracking medical device IP litigation, IP professionals monitoring surgical equipment patent trends, and R&D teams assessing freedom-to-operate risk in the operating room technology space, this case offers a textbook example of how prolonged district-court proceedings can culminate in a negotiated exit — and what that outcome signals about litigation leverage, portfolio strength, and commercial risk calculus in the medical device sector.
The Parties
⚖️ Plaintiff
A medical device company focused on surgical patient safety products, including warming and positioning solutions used in operating room environments. Holds a notable patent portfolio directed at surgical pad technology.
🛡️ Defendant
Named as an individual defendant in this infringement action. The specific commercial or inventive role attributed to Mullen in relation to the accused products was not publicly elaborated.
Patents at Issue
This case involved three U.S. patents covering surgical positioning and patient protection technology. Together, these patents represent a coordinated IP portfolio protecting overlapping aspects of surgical pad design and functionality — a common multi-patent assertion strategy intended to maximize claim coverage and litigation leverage.
- • US 8,511,314 B2 — Surgical pad technology
- • US 8,464,720 B1 — Patient protection apparatus claims
- • US 9,161,876 B2 — Surgical positioning and safety pad technology
Designing a similar medical device product?
Check if your surgical pad design might infringe these or related patents before launch.
The Verdict & Legal Analysis
Outcome
The case was resolved by stipulated dismissal without prejudice pursuant to Federal Rule of Civil Procedure 41(a)(1)(A)(ii). Per the parties’ stipulation, each side agreed to bear its own attorneys’ fees and costs. No damages award, injunctive relief, or consent judgment was entered.
Key Legal Issues
The case was brought as a straightforward patent infringement action. Because the matter resolved by mutual stipulation rather than judicial ruling, no formal claim construction order, invalidity finding, or infringement determination was issued by the court. As a result, the three patents-in-suit — US8511314B2, US8464720B1, and US9161876B2 — emerge from this litigation with their validity formally unchallenged by any court ruling.
The absence of a damages figure or injunctive outcome is consistent with a privately negotiated resolution, whether that took the form of a licensing agreement, a covenant not to sue, a design-around arrangement, or a purely commercial settlement whose terms were not made part of the public record.
Freedom to Operate (FTO) Analysis
This case highlights critical IP risks in medical device design, especially surgical pads. Choose your next step:
📋 Understand This Case’s Impact
Learn about the specific risks and implications from this litigation.
- View all related patents in this medical device technology space
- See which companies are most active in surgical pad patents
- Understand claim construction patterns
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High Risk Area
Surgical pads with specific positioning features
3 Patents at Issue
In surgical pad technology
Design-Around Options
Available for many aspects of design
✅ Key Takeaways
Multi-patent assertion from related application families (US13/773290, US13/737552, US13/957778) strengthens infringement claims and complicates invalidity defenses.
Search related case law →A Rule 41(a)(1)(A)(ii) without-prejudice dismissal preserves enforcement rights — distinguish from with-prejudice outcomes when advising clients on settlement structures.
Explore precedents →No claim construction issued — the three XODUS MEDICAL patents carry forward without adverse judicial interpretation, preserving portfolio value.
Analyze claim scope →Frequently Asked Questions
Three U.S. patents: US8,511,314 B2, US8,464,720 B1, and US9,161,876 B2 — all directed at surgical pad and patient protection technology.
The parties stipulated to dismissal under FRCP 41(a)(1)(A)(ii), with each bearing its own costs. No public explanation was provided, consistent with a privately negotiated resolution.
It reinforces the viability of multi-patent enforcement strategies in OR safety technology and signals that without-prejudice resolutions remain a preferred exit mechanism in medical device IP disputes.
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References
- U.S. District Court for the District of South Carolina — Case 7:21-cv-00727
- U.S. Patent and Trademark Office — Patent Resources
- PACER – Public Access to Court Electronic Records (Case No. 7:21-cv-00727, D.S.C.)
- Cornell Legal Information Institute — Federal Rule of Civil Procedure 41
- PatSnap — IP Intelligence Solutions for Law Firms
This article is for informational purposes only and does not constitute legal advice. All case information is drawn from publicly available court records. For platform capabilities, visit PatSnap.