Guidelinesfor Examination PART B CHAPTER VII UNITY OF INVENTION 2. Procedures in cases of lack of unity 2.2 Decision with respect to unity of invention
From the preceding paragraph it is clear that the decision with respect to unity of invention rests with the Examining Division (see III, 1.1). Consequently, the criteria to be applied in this respect by the Search Division should not be different from those applied by the Examining Division.
In particular, the Search Division should not raise an objection of lack of unity merely because the inventions claimed are classified in separate classification units, or merely for the purpose of restricting the search to certain sections of the documentation, for example, certain classification units (see, however, V, 7).