Can I change patent applicants when I change companies?

Yes, you can. The patent that has been approved has become the patentee, so if it is changed at this time, it is actually the patentee, that is, the original patentee has transferred the patent right to the new patentee. The applicant for change needs to apply for describing the change and provide the identification documents of the patentee before and after the change, such as a copy of the business license. In addition, the agency will ask you to help prepare the power of attorney. If the entrusted agency is not the original agency, a letter of dismissal is also required. The agent will prepare the documents, and you need to help stamp them. The cost can not be less, and it can be completed in 2 ~ 3 weeks.