Patent right includes property right and personal right, and the subject of patent right as pledge is limited to the property right in patent right. Property rights in patent rights include the following: 1. Enjoy the exclusive right to exploit the patent, that is, the patentee enjoys the exclusive right to manufacture, use or sell the invention-creation he has obtained according to law. Unless otherwise provided by law, no unit or individual may manufacture, use or sell its patented products for production and business purposes without the permission of the patentee; 2. Patent transfer right, the patentee can transfer the patent to others by buying, selling, giving and other forms according to law, and the patent transfer contract will take legal effect only after it is registered and announced by the Patent Office; 3. Patent licensing right, the patentee has the right to license others to exploit the patent he has obtained and get paid. According to the provisions of the Guarantee Law, the right of patent transfer and the right of patent exploitation in the patent right are legally transferable property rights, and the patentee can set a pledge with these two rights.