During the process of patent examination, many applicants are required to revise their applications on the ground of lacking unity of invention, because the examiner decides that the application contains multiple inventions. Under such circumstances, the applicant may file divisional applications per the examiner’s requests. The initial patent application will thus be divided into two or more applications in order to meet the unity requirement, and these divisional applications may retain the initial application filing date. The priority date may be retained as well if priority had been claimed in the initial application.
2022-04-29