Chinese patent has three categories: invention, utility model, design. The invention can protect the product, method, process and utility model can not protect the contents of the structure of the utility model protection products, the shape of the design protection products, shapes and patterns. 
 2, the principle of patent applications: the right to apply, who should; who should apply for the rights of who should. 
 3, applications for invention or utility model patents, technical tests, materials need to be a patentable invention to create content as complete and detailed illustrated, open the full extent of its contents can be achieved in accordance with the instructions to the technical field and technical personnel standards. Including the following: 
 (1) name; 
 (2) the technical field; 
 (3) The background technology - the status of the existing technology and shortcomings; 
 (4) invention: to solve technical problems, states want to protect the invention or utility model technical solutions, technical staff can understand the technical field, as well as the beneficial effects compared with the background technology; 
 (5) provides the photos and their descriptions; 
 (6) control drawings detailed description of the applicant that the invention or utility model specific ways (which can give you more examples). 
 To apply for a patent for design to provide product samples or photographs or drawings to meet the requirements and make the necessary instructions. 
 5 Time and costs: 
 (1) invention: first instance of real-trial stage in two stages. Application at least 18 public four years ,2-authorized protection for 20 years; 
 (2) the utility model: Application for about six months after authorization, protection of 10 years; 
 (3) design: the application, about three months, authorization, protection of 10 years. 
 Cost: different patent fees (individual application fees apply fees partial relief) 
 6. The specific procedures 
 1) inthe (utility model, invention) or a sample or photo (design); 
 2) principal-agent contract signed with us and pay; 
 3) We in about three days to complete the application file and confirmed by the Principal; 
 4) submission of documents by us to the national patent offices, patent application number and in about seven days, the admissibility of the notice provided to the Principal; 
 5) we deal with problems that may occur, until patented authorized. 
 The letter then, Shenzhen City Intellectual Property Agency Co., Ltd. is a licensed trademark agency formally approved by the State Administration for Industry and State Trademark Bureau, mainly engaged in domestic and international trademark registration, patent applications, double soft certification, the national high-tech enterprises to apply knowledge property rights proxy transaction. I graduated by the number of the legal profession, and years of agency experience in trademark, patent agents and lawyers, the Secretary for one accustomed to adhering to a serious, rigorous, modest style, the use of a solid foundation for legal theory and agent practical experience, for customers to solve intellectual property problems, and professional recommendations to help customers gain the upper hand in the intellectual property strategy.