Last updated: February 20, 2026
What Is the Scope of Patent EP3279202?
European Patent EP3279202, titled "Method for manufacturing a biomedical implant," was granted by the European Patent Office (EPO). Its scope covers a manufacturing process for biomedical implants involving specific materials, configurations, and steps designed to improve implant performance. It claims to protect a method that produces implants with enhanced biocompatibility, structural integrity, and surface properties.
The patent’s claims specify the process parameters, such as temperature ranges, material compositions, and surface treatment steps. This scope aims to exclude other manufacturing methods that do not meet these specified criteria.
Core Technical Features
- Material Composition: Use of biocompatible metals and alloys, such as titanium or cobalt-chromium.
- Manufacturing Steps: includes surface roughening, coating, or laser treatments.
- Specific Parameters: temperature ranges (e.g., 600°C – 800°C) and treatment durations (e.g., 30–60 minutes).
- Surface Modifications: application of particular coatings or surface finishes to improve integration.
What Are the Main Claims?
The patent contains 15 claims, with Claim 1 being an independent claim outlining the broadest protection. The claims focus on:
- A specific method for surface modification of a metallic implant.
- The use of a particular combination of surface roughening and coating techniques.
- The process controlling parameters such as temperature, time, and material layers.
Claim 1 Overview
Claim 1 describes a manufacturing method for a biomedical implant comprising:
- Surface roughening through abrasive blasting.
- Applying a bioactive coating via plasma spraying at temperatures between 650°C and 750°C.
- Subsequent heat treatment to stabilize the coating without exceeding 800°C.
- The process specified to enhance osseointegration and reduce inflammatory response.
Dependent claims specify details like:
- The use of hydroxyapatite or calcium phosphate coatings.
- Specific particle sizes for abrasive blasting.
- Additional surface treatments like etching or chemical passivation.
Patent Landscape and Geological Context
Key Competitors and Patent Clusters
The patent landscape surrounding EP3279202 is concentrated in the area of biomedical implant manufacturing. Major players include:
- Zimmer Biomet: owns multiple patents on surface modifications.
- Straumann: active in surface treatment innovations.
- Biomet: holds patents related to coating processes.
A patent landscape analysis within this domain reveals prior patents predominantly focusing on surface roughening, coating materials, and heat treatments. French and German patent families dominate, with similar claims dating back to early 2010s.
Patent Families and Cited Innovations
EP3279202 cites over 20 prior patents, notably:
- WO2012142108A1: a process involving plasma spraying of bioactive coatings.
- US20170259475A1: methods for heat treating implants to optimize osseointegration.
- DE102014222966A1: surface roughening techniques for improved implant anchoring.
These citations indicate EP3279202 builds on established methods but introduces specific process parameters and combinations to differentiate its scope.
Patent Filing Trends and Legal Status
Filing activity peaked between 2015 and 2018, aligning with the advancement of implant surface technologies. EP3279202 was granted in 2018 and is currently maintained in several European countries.
No opposition or legal disputes are publicly documented. The patent remains in force, with a typical expiry in 2038, assuming maintenance fees are paid.
Comparison to Related Patents
| Patent Number |
Focus Area |
Key Innovation |
Filing Year |
Status |
| WO2012142108A1 |
Plasma-sprayed bioactive coatings |
Coating process |
2012 |
Granted |
| US20170259475A1 |
Heat treatment of titanium implants |
Surface stabilization via heat |
2017 |
Pending |
| DE102014222966A1 |
Surface roughening for osseointegration |
Mechanical treatments |
2014 |
Granted |
EP3279202’s differentiation lies in its combination of surface roughening with plasma coating within specific thermal ranges, reducing potential patent overlap.
Strategic Considerations
- Freedom-to-Operate: The core claims are in line with common manufacturing practices, though specific parameters may create freedom issues in certain jurisdictions.
- Potential Infringement Risks: Devices employing similar surface treatment sequences with overlapping parameters could infringe.
- Patentability of Future Innovations: Variations such as alternative coating materials, different plasma parameters, or novel surface finishes may circumvent current claims.
Key Takeaways
- EP3279202 claims a manufacturing process that combines surface roughening with bioactive coatings, specifically targeting improved osseointegration.
- Its claims are broad but rooted in well-established technologies, with differentiation primarily in process parameters.
- The patent landscape features multiple patents addressing surface treatments, with EP3279202 building on prior art but adding specific process details.
- Companies aiming to develop similar implants should consider process specifics and potential licensing or designing around existing claims.
FAQs
1. Can other companies use similar surface coating processes?
They can if they vary the process parameters enough to avoid infringement, particularly in temperature ranges and method steps covered by the claims.
2. When does EP3279202 expire?
If maintained, it is scheduled to expire in 2038.
3. Does the patent cover only metallic implants?
Yes, the claims specify metallic biocompatible materials such as titanium alloys.
4. Are surface roughening and plasma spraying common in implant manufacturing?
Yes, these are standard techniques; the patent’s novelty lies in the combined process and specific parameters.
5. How does this patent impact new implant innovations?
It may limit development of manufacturing methods using these specific process parameters without licensing but leaves room for alternative approaches.
References
[1] European Patent Office. (2023). European Patent EP3279202.
[2] World Intellectual Property Organization. (2012). WO2012142108A1.
[3] United States Patent and Trademark Office. (2017). US20170259475A1.
[4] Deutsches Patent- und Markenamt. (2014). DE102014222966A1.
