On the morning of February 26, in the director's office of the Zhangqiu City Cookware Machinery Factory, Guo Chengtian, a farmer “inventor” with four patents, and Li Chuanguang, the director of the factory, signed the patent contract. The "Pujia", the factory won the exclusive production rights in Shandong, the patent implementation license fee of 15,000 yuan per year.
"This invention technology is mature and the market prospect is good. It is estimated that the capacity of Shandong market is about 2,000 units and the profit is about 2 million yuan. After the successful conversion, it may become a new profit growth point of our factory." Deputy Director of the company said.
Guo Chengtian, 40, is a native of Guomao Village, Ningjiatun Town. After graduating from high school, he worked as a woodworker, a lathe worker, a technician, and a workshop director at a village-run factory. When he helped his relatives dig the onions, he came up with the idea of ​​inventing a machine to replace high-intensity labor. At the end of 2002, the digging machine was successfully developed. The following year, the national utility model patent was applied. At the end of 2005, five prototypes were basically completed.
After three years and more than 10,000 yuan of investment, he resigned from the work in the factory. Guo Chengtian rushed to the digging machine. Although it was successively funded by the Zhangqiu Science and Technology Bureau and the Jinan Municipal Intellectual Property Office, Liu Maojin, deputy mayor of Zhangqiu City, and related departments specially opened a live meeting, and made a feature film broadcast on Zhangqiu TV station, but the transfer problem still allowed Guo Chengtian. Made a sigh.
First of all, the letters claiming to help the transfer came to the fore. He sent out five or six hundred yuan, and there was no news. He then pulled the prototype to contact the buyer and did not succeed. On the same day, the digging machine was “married”. He also had three patents: “Hexagon Function Knife Rack Installed on Ordinary Lathe”, “Automatic Feeding Screen Sander”, and “Hand-held Corn Combine Harvester”. .

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