2.2 Complete search despite lack of unity 

In some exceptional cases ‒ especially where the lack of unity was not immediately apparent and is detected "a posteriori" and the different inventions identified are conceptually very close ‒ the extra work and cost involved in carrying out a complete search and drawing up a search opinion (where applicable – see B‑XI, 7) for all the inventions is only negligible. In such cases, the search division carries out the search on the other inventions at the same time as the one on the invention first mentioned in the claims and includes all the results in a single search report, in which it objects to the lack of unity and identifies the different inventions. It will also point out that it did not invite the applicant to pay further search fees because it was able to search all the claims without the extra work that would justify them. However, the search opinion (if applicable ‒ see B‑XI, 7) will still raise the objection to the lack of unity of invention (see B‑XI, 5).