20 years. Pharmaceutical invention patents have supplementary protection certificates (Supplementary protection certificates, SPC), which can extend the protection period for 5 years.
- UK Invention Patent Application Authorization and Annual Fee Instructions
- Features of the UK invention patent application process
- How long is the PCT period for UK invention patent application
- How long is the protection period of the UK invention patent application
- Whether a UK industrial design application can apply for a combined appearance
- What are the requirements for UK design application documents?
- Whether a UK industrial design application can be type-converted
- How long is the deadline for UK industrial design application
- Novelty Grace Period for UK Invention Patent Application
- Novelty grace period for UK industrial design applications