According to the data of China Travel Service. Technology patents can be changed. Patent change, commonly referred to as bibliographic item change, means that if some information of the patent is to be changed, such as information of the obligee, inventor and agency, it is necessary to make a statement on bibliographic item change. The types of changes include: changes of inventors, applicants and patentees; Changes in the entrustment relationship between patent agencies and agents. Expenses: change of inventor, applicant and patentee 200 yuan; Changes in the entrustment relationship between patent agencies and agents in 50 yuan.