Help



Search limitations

To achieve an accurate search result in the register you need to be aware of the limitations. Unless explicitly indicated, the following limitations apply to both Smart search and Advanced search.


- Maximum of 10 search terms per field.

- Maximum of 20 terms in total and 19 operators per mask.

- When combining search fields in the Advanced search mask, the default operator is "and". It cannot be changed.

- Default operators within a search field in the Advanced search mask are the following:


Search field

Searched items

Default operator

Publication number

Application number

Priority number

Document numbers

or

Filing date

Publication date

Priority date

Date of grant

Dates

or

Applicant

Inventor

Representative

Opponent

Names

and

IPC

Classification codes

and

Title

Keywords

and

If other operators are required these should be entered manually.

- Truncation: see Help Truncation

- Apostrophes, hyphens and diacritical characters are not recognised.

- Names are not searchable for documents published in other alphabets (Cyrillic, Greek, Japanese, etc.).