4.3 Background art
Overview
4.3 Background art
See ISPE Guidelines 4.05. The EPO applies option GL/ISPE A4.05[1] of the Appendix to Chapter 4 of the ISPE Guidelines.
- Homepage
- Searching for patents
- Overview
- Technical information
- Legal information
- Business information
- Data
- Helpful resources
- Applying for a patent
- Overview
- European route
- International route (PCT)
- National route
- MyEPO services
- Forms
- Fees
- Law & practice
- Overview
- Legal texts
- Court practices
- User consultations
- Substantive patent law harmonisation
- Convergence of practice
- Options for professional representatives
- News & events
News & events
Our latest news, podcasts and events, including the European Inventor Award.
- Overview
- News
- Events
- European Inventor Award
- Press centre
- Innovation and patenting in focus
- Overview
- Firefighting technologies
- Green tech in focus
- CodeFest on Green Plastics
- Clean energy technologies
- IP and youth
- Research institutes
- Women inventors
- Fighting coronavirus
- Lifestyle
- Space and satellites
- The future of medicine
- Materials science
- Mobile communications
- Biotechnology
- Patent classification
- Digital technologies
- The future of manufacturing
- Books by EPO experts
- "Talk innovation" podcast
- Learning
- Overview
- European Patent Academy
- Professional hub
- Learning resources by area of interest
- Learning resources by area by profile
- About us
- Overview
- The EPO at a glance
- 50 years of the EPC
- Legal foundations and member states
- Governance
- Principles & strategy
- Leadership & management
- Social responsibility
- Services & activities
- Procurement
- Transparency portal
- Statistics and trends
- History