Votre avis est important pour nous. Nous vous saurions gré de prendre un instant pour répondre à trois brèves questions. Espacenet : free access to millions of patent documents.
Find out if your invention is unique or if other inventors have filed patent applications that are considered to be prior art. Classification search is a powerful tool for you if you need to retrieve patent publications in a particular technical area. You can enter inventor or applicant names, numbers, dates, keywords and classes in any order without having to specify the search field for each search term.
How do I enter a date range for a publication date search ? Can I save my query? La recherche dans la classification est un outil performant qui permet de trouver des documents brevets publiés dans un domaine technique particulier. Smart search The Smart search mask combines multiple functions into a single, easy-to-use search field so that you can enter your queries with or without field identifiers.

;Composite=(type=URL,url=https://images.radio-canada.ca/v1/assets/elements/16x9/outdated-content-2016.png),gravity=SouthEast,placement=Over,location=(0,0),scale=1)


