Wang Kuang's guess was correct. Not only would Li Min and the others retaliate, but their method of revenge was also very sinister. It could almost be said to be a drain on the fire. Although the Wang family's early investment in buying the mine would not be lost, even if the Wang family bought the mine

They even organized people to dig out the coal, but the future sales all depended on Li Min's face. He could make money if he wanted them to, or lose money if he wanted them to. It could be said that it was completely in Li Min's hands.

In August of the 10th year of Zhenguan in the Tang Dynasty, a historical event occurred that caused the history of the Tang Dynasty to go astray. Duan Lun, Minister of the Ministry of Industry, wrote a petition. In view of the good effect of the cement patent, it not only made the promotion of cement faster and faster

, and it can also protect the rights and interests of cement inventors, so he asked Taizong Li Shimin to promulgate a patent law to protect the rights and interests of those who invent new processes and technologies, so as to encourage the enthusiasm of the Tang Dynasty subjects for invention.

Although Duan Lun's move aroused opposition from some pedantic people, such as Kong Yingda, Yu Zhining and others, they believed that once the patent law was promulgated, it would only make people indulge in strange and obscene techniques and forget the teachings of sages. Therefore,

They held a firm opposition attitude. However, a group of important officials such as Fang Xuanling believed that this method was very good. They had seen the impact of new technologies on Datang from the cement incident, and believed that if Datang could have more inventions similar to cement,

It can only make Datang stronger, so it should be strongly supported.

In addition to Fang Xuanling and his group, there are two other unexpected groups of people who support the patent law. One is Cheng Yaojin and Li Ji, a group of generals, and the other group is led by Li Xiaogong and Li Daozong.

These two groups of royal family members, who had never expressed any opinions on political affairs, unexpectedly signed a joint letter asking Li Shimin to agree to the enactment of the Patent Law.

With the support of so many people, and the fact that Li Shimin always attached great importance to craftsmen, he finally agreed to the matter and asked Fang Xuanling and others to write the patent law. Through Fang Yiai, Li Min reported some of the patents he knew to

The content of the law was conveyed to Fang Xuanling, so that this significant law was officially promulgated half a month later. The first patent bill on earth finally began to be officially implemented.

Those who participated in the promulgation of the Patent Law did not realize the importance of this matter. Even Li Min, a time traveler, did not know enough about this matter. He did not know that because of his actions this time, Datang had already embarked on the path of

An unknown fork in the road caused the future history to completely change, and the Tang Dynasty he knew before would never appear again.

At the same time as the Patent Law was promulgated, a new government department was also established, that is, the Patent Department under the Ministry of Industry. This Patent Department has a doctor, starting from the fifth grade, and another member, Wai Lang.

From the sixth grade.

It is worth mentioning that this Patent Department is the original team of the Cement Supervision and Manufacturing Institute. Even the office location has not changed, but the brand name of the Cement Supervision and Manufacturing Institute has been changed to the Patent Department. Because patent matters are not limited to the Cement Supervision and Manufacturing Institute.

Except for the personnel, no one else had relevant experience at all. Therefore, when the Patent Department was established, the Cement Supervision Institute also abolished its establishment, and the personnel inside were reorganized into officials of the Patent Department. The powers of the Cement Supervision Institute were also transferred to the Patent Department.

, and Li Yifu was also promoted from the seventh-grade supervising officer to the patent department official. However, the doctor in charge of the patent department was not Li Min, but another person was assigned by Li Shimin to take the position. Li Min was automatically dismissed and went back to work as his

Prince Xiaoyao.

When the Patent Department was first established, Li Min and others were the first to register a patent. Datang's patents were different from those of later generations. The registrant could set the protection period of the patent, but the minimum was ten years and the maximum could not be more than one.

Hundreds of years, and the longer the time, the less royalties can be collected for this patent.

Li Min registered a ten-year patent for fried tea. After all, this thing cannot be kept secret forever, and it is also beneficial to promote it. It is good to receive ten years of patent fees. In addition, perfume, fireworks, mirrors and other items

These are all the maximum number of years for registration. These things are now considered luxuries, and Li Min does not intend to make them public too early. The distilled liquor technology was jointly registered in the names of Li Min, Li Xiaogong and other five people. After all,

At the beginning, Li Min paid for it and only invested in technology, so the four of them, Li Xiaogong, bought part of the patent and it was shared by five people. After obtaining their consent, the patent was also registered for a hundred years. After all, food is precious now, and they are one of them.

The factory has already been impeached by the censor. If the distilled liquor technology is further promoted, I am afraid it will not be impeached by the censor. Even Wei Zheng will file a report against them.

In addition to the above things, Li Min, together with Cheng Huailiang and others, also registered honeycomb briquettes and coking technology in the name of the Carboniferous Industry Association, and the time is also a hundred years. These two are their sharp weapons against the Wang family in Taiyuan.

How about a longer time?

The two things Li Jingheng mentioned before are briquettes and coking technology. You must know that after the coal is dug out, it must be sold. With the application of pebbles in cement plants, more and more people have realized that pebbles are

It is an excellent fuel, but the cement factory is still the largest buyer of coal. And now the cement plants are under the control of Li Min's Cement Industry Association, so we can ask all cement factories to block the coal produced by Wang. In this way,

, if the coal produced by the Wang family in Taiyuan wants to be sold, it can only go to other markets.

However, Li Min has now registered patents for both honeycomb coal and coking. This has almost cut off the private market and high-end coking market of Wang's coal. It can be said that after the Taiyuan Wang's coal is dug out, there is almost no way to sell it.

Going out, even if some industries require a small amount of raw coal, it is just a drop in the bucket and cannot play a big role. Therefore, the Wang family's coal coal industry in Taiyuan is destined to be a tragedy.

"Cheers~" After getting the registration certificate for honeycomb coal and coking technology, Li Min was carried to the Dengxian Tower by Cheng Huailiang, Qin Huaiyu and others. Everyone refused to return until they were drunk. After Li Yexu saw Li Min's methods for the first time, he also

I admired him so much that I even offered Li Min three big bowls of wine and five kings of drunkenness in front of him, which made Li Min's face turn pale with fright.

Li Min was also very satisfied with the patent law issue this time. He had long wanted to introduce the patent law. However, although he had a noble status, he did not have any political power. He wanted to convince Li Shimin and Li Shimin by himself.

It is almost impossible for an important minister in the DPRK to seize the opportunity this time. Through the coal mine incident, he united all the forces that could be united and traveled around in person. It was not easy to convince so many people.

People, finally promulgated the patent law.

But thinking about the price he had paid for this, Li Min felt like crying. Forget about the others, they were either related to coal mines or cement. As long as he put in some effort, it would not be difficult to convince them, but in the end

The most difficult thing to deal with is Duan Lun, the minister of the Ministry of Industry. Because the patent law has the greatest relationship with the Ministry of Industry, it is most appropriate for Duan Lun to propose it. However, although Duan Lun has a good relationship with Li Min, he does not want him to have a chance.

It was obviously impossible for him to do such a big favor for no reason. In the end, Li Min gritted his teeth and promised to provide low-priced coke to the Ministry of Industry for three years. He also sold himself to the other party and promised to help the Ministry of Industry improve the current iron and steelmaking process.

Duan Lun originally thought that Li Min was bragging about his technology, but when Li Min explained the method of pouring steel, Duan Lun was immediately shocked. Although he didn’t know how effective this method was, it sounded better than the current method of frying steel.

His magic power had improved a lot, and he remembered Li Min's talent in making weapons, so he finally agreed.

"Liu Liang, you have given us a sigh of relief this time. The coal mine we can buy is less than half of the Wang family in Taiyuan. I wonder who they will sell it to in the future?" Yan Bei was also happy and even drank.

The little half-catty Wu Wang was drunk. He was smelling of alcohol and his face was red. It looked like he was almost drunk.

"Haha~, I heard that the Wang family spent a lot of money to buy these coal mines. This time I want them to pay for it and lose all their money!" Li Jingheng also staggered over, with a smile on his fat face.

He has the look of a villain who has achieved success.

The people around them laughed proudly when they heard what the two of them said. Although coal is a good thing, if it cannot be sold, it will just pile up rocks. Moreover, they did it very covertly this time. It is estimated that the Taiyuan Wang family has not yet

Knowing that they have been cheated, Li Min and the others will certainly not publicize it. They will only wait until the Taiyuan Wang family makes another investment to dig out the coal. Then it will be time to make the matter public. Presumably the Taiyuan Wang family will look certain at that time.

Very pretty.

"By the way, Liu Lang, although your Cement Supervision Institute is gone, the position of the patent department doctor should be yours, why should it be replaced by the one named Xu?" Li Jingheng had just sent Yan Bei and Li Jingheng away.

Jingye squeezed over again and asked Li Min with a smile. The man named Xu in his mouth was Xu Jingzong, the new doctor of the Patent Department. He used to be the secretary of Zhongshu Province and specially drafted imperial edicts for Li Shimin, but this time he was transferred

He went to the Patent Department and took the position that should have belonged to Li Min.

"Oh~, I am also wondering now. I guess someone may have said bad things about me, so my father sent someone from Zhongshushe to replace me." Li Min also said a little helplessly. He was not satisfied with this.

I can't understand the matter. No matter how you look at it, the position of doctor in the Patent Office should be his, but his emperor father packed up his cement manufacturing institute and turned it into the Patent Department, but he was the only one who got kicked out.

On the one hand, it's really weird.

Although Li Min did not become a doctor in the Patent Department, he was very interested in the newly appointed Xu Jingzong. Xu Jingzong was also a celebrity in history. Together with Li Yifu, he was known as Wu Zetian's two biggest thugs and was the one who promoted Wu Zetian to the throne.

The most important person. But what makes Li Min dumbfounded is that now the two thugs Xu Jingzong and Li Yifu have been hired by him to the Patent Department, and they have also become colleagues. These two people are more cunning than the other, so they get together.

Managing the Patent Department makes Li Min really worried. He wonders if the Patent Department that he has finally built will be sold by these two traitors? (To be continued)
Chapter completed!