EPO express



List of all topics on epo-express


Please find here a list of topics that are discussed on the website of epo-express with respect to filing European patent applications.


If there is any topic you would like to know more about, please send us a message and we will try to update our information about filing a European patent application with the European Patent Office.


Please click on one of the buttons to follow the link to the topic of your interest.



The European patent

Who can file a European Patent application?

When is my invention novel?

When is my invention based on an inventive step?

In which languages can I file my European Patent application


Re-establishment of rights

If something goes wrong, what is my last resort?


About the right of priority


The right of Priority

What is the Paris Convention ?



Who can benefit from the Paris Convention ?



What is the benefit of the right of Priority ?

What is equal protection of nationals and foreigners ?

What is a duly filed application ?

Who benefits from the right of Priority ?

What are the formal requirements for transferring the right of Priority ?

How long can I benefit from the right of Priority ?

What do I need to benefit from the right of Priority ?

What is the minimum requirement to establish a right of Priority ?



English Patent Laws

The Designs Act 1850

The Protection of Invention Act 1851



History of International Patent Congresses


1873 International Patent Congress in Vienna

Official invitation to Vienna patent congress



Revision conferences of the Paris Convention


Amdenments to the Paris Convention introduced in 1900 in Brussels