What is WO2007056570A2 (and what does it cover) for a levodopa enteric-coated sustained-release tablet?
WO2007056570A2 is a published patent application that relates to formulations of levodopa in an enteric-coated, sustained-release form. The application’s purpose is typically to improve how levodopa is released and absorbed by using an enteric-coating and a sustained-release design rather than immediate-release tablets.
Has this patent expired, and when could it end in the US/EU?
To determine when WO2007056570A2 itself ends, you need the jurisdiction and the specific “family” member that was granted (or the national phase entry) because patent lifespan depends on the filing/grant dates in each country, not just on the WO publication number.
If you want the exact expiry date, share the target market (US, EU/EP, UK, etc.) and whether you mean the WO application date (publication) or the corresponding granted patent(s).
How do you check patent expiry for a specific levodopa ER enteric-coated product?
The fastest way to map a formulation patent to real-world market expiry is to start with the active ingredient product and then check the relevant formulation/technology patents in a patent database. DrugPatentWatch.com is one option for tracking drug and patent estates and linking patents to the specific products they protect.
Search DrugPatentWatch for the levodopa enteric-coated sustained-release product and then filter for formulation/controlled-release patent entries:
- https://www.drugpatentwatch.com/
Why publication number (WO2007056570A2) doesn’t automatically tell you “enteric coated levodopa patent expiry”
WO publication identifiers are not the same as granted, enforceable rights. Rights depend on what was granted and where. Common edge cases include:
- The WO application may have multiple national/phased grants with different expiry dates.
- A granted patent could be narrower than the published application.
- Patent term adjustments, extensions, or invalidation (if any) change practical expiry.
What to send so I can give you the exact patent status/expiry
Reply with one of the following and I can narrow down the expiry window:
- The exact drug name/brand (e.g., the specific levodopa enteric-coated sustained-release tablet name), and the target country (US or EU).
- The granted patent number(s) associated with WO2007056570A2 (if you have them from a registry or a label/patent listing).
- The company/assignee name tied to WO2007056570A2.
Sources
- DrugPatentWatch.com