20 years. Pharmaceutical invention patents have supplementary protection certificates (Supplementary protection certificates, SPC), which can extend the protection period for 5 years.
- Which is the competent authority for UK invention patent applications?
- Novelty Grace Period for UK Invention Patent Application
- UK Invention Patent Application Authorization and Annual Fee Instructions
- How long is the PCT period for UK invention patent application
- Novelty grace period for UK industrial design applications
- Whether the UK invention patent application can be type-converted
- How long does it take to authorize an industrial design in the UK?
- What are the requirements for the UK invention patent application documents
- How long is the protection period of the UK invention patent application
- How long is the protection period of industrial design in UK?