Developing Story
Silimed vs. Polytech – Breast Implant Patent Dispute (Munich UPC)
Silimed, a Brazilian breast implant manufacturer, won a preliminary injunction at the UPC Munich Local Division against German rival Polytech after successfully completing an entitlement action to transfer patent ownership away from Polytech. The case is a rare example of using a UPC entitlement action offensively and then immediately enforcing the newly acquired patent against its former owner.
Importance: 63%Confidence: 80%Mentions: 1Updated: April 12, 2026
## Overview
Brazilian medical device manufacturer Silimed has obtained a preliminary injunction against German competitor Polytech at the Munich Local Division of the UPC, following a successful entitlement action that transferred ownership of a key breast implant manufacturing patent from Polytech to Silimed. This case is notable for combining an entitlement/ownership dispute with subsequent infringement enforcement against the former patent owner.
## Key Facts
- **Patent at issue**: Covers manufacture of breast implants (specific EP number not yet public).
- **Entitlement action**: Silimed successfully challenged Polytech's ownership of the patent, resulting in transfer of rights to Silimed.
- **PI granted**: Munich Local Division issued preliminary injunction against Polytech following the ownership transfer.
- **Unusual posture**: Polytech is both the former patent owner and the now-accused infringer—a rare litigation configuration.
## Strategic Significance
### For IP Litigators
- Demonstrates that UPC entitlement actions (disputes over who rightfully owns a patent) can be a viable offensive tool, not just a defensive one.
- Munich Local Division shown willing to grant PI immediately following entitlement resolution—courts not requiring extended post-transfer delay.
- Medical device sector increasingly active at UPC alongside pharma and consumer tech.
### For Companies
- Brazilian manufacturers can use European IP infrastructure offensively against European incumbents.
- Entitlement actions present underutilized strategic leverage in competitive IP disputes.
- Companies holding patents should audit chain-of-title carefully; ownership vulnerabilities can be exploited by competitors.
## Parties
| Party | Role |
|---|---|
| Silimed | Brazilian manufacturer, new patent owner/Claimant |
| Polytech | German manufacturer, former owner/Defendant |
| UPC Munich Local Division | Court |
## Watch Points
- Whether Polytech successfully challenges the PI or the underlying entitlement ruling on appeal.
- Scope of the injunction and whether it impacts Polytech's broader product line.
- Whether Silimed pursues damages following PI.
- Precedential value of the entitlement-to-PI pathway at UPC.