What are the requirements for the Luxembourg invention patent application documents?

OPI conducts only formality examination of design patent applications.

4 months

Reinstatement of priority is accepted on grounds of "due care."

OPI conducts only formality examination of invention patent applications. The applicant needs to file a search request within 18 months from the filing date, or submit a search report issued by any official search agency within 18 months from the priority date, and the judgment of novelty in the search report does not affect the Luxembourg patent granted.

• via Paris Convention : 12 months from earliest priority date.
• via Nationalization of PCT : 20 months from the earliest priority date.

*Luxembourg is one of the only countries in the world that still retain Chapter I for 20 months to enter the national phase (the other is Tanzania). If it takes 30 months to enter the national phase, a request for international preliminary examination must be filed.

The novelty grace period is 12 months before the filing date/priority date.

Reinstatement of priority is accepted on grounds of "due care."

6 months before the filing date/priority date.

6 months before the filing date/priority date.

no