2. During the period of patent pledge, the pledgee has absolutely no right to license others to use or transfer the pledge right, and the pledgee only enjoys the right of possession and preservation of the patent right.
3. During the pledge of the patent right, all expenses for maintaining the patent right itself, such as annual fees and patent fees, shall be borne by the pledgor. However, if the pledgee thinks that the pledge may be beneficial to him, he may also pay his own expenses. For these expenses, the pledgee has the right to demand compensation from the pledgor.
4. The patent pledge registration takes effect. The pledge of movable property takes effect when the pledged property is delivered to the pledgee. However, in addition to concluding a pledge contract, the pledge of patent rights must also be registered, and the pledge will take effect from the date of registration.