The first item: a white microfiber cleaning rag.

The second item: a red microfiber cleaning rag.

The third item: purple microfiber cleaning rags......

From red, orange, yellow, green, blue, purple, to white, black, gray, orange, gold and silver powder, and then to what light yellow, cobalt blue, iron, camel yellow and the like are messy, there are twenty-four different color rag patents.

It's not so much a patent as it is trampling on the IQ of patent examiners.

But the reviewers have to pinch their noses to accept these applications. Because of the non-collection, other companies may "plagiarize patents" in a similar way.

If it weren't for the fear that the reviewers would be hurting people, the company might not be able to register hundreds of color rag patents in one go.

However......

The weeds overgrow the corn.

Less than three months after the company's patent was registered, it was counterfeited by another textile company, and it was still the kind of counterfeit that obtained a patent certificate.

You registered all the rag colors you could think of, and you thought everything was fine?

Another company is ingenious, I can't make a fuss about the color, then I'll work on the shape.

You make a square rag, I design a glove of the same material, and change the name to [Microfiber Cleaning Gloves], and then register a bunch of different colors of cleaning gloves patents.

Just went to work at the Intellectual Property Office, and when he saw these strange patents, Jiang Jiuling was shocked.

Then slowly became accustomed to it, and after communicating with the intellectual property offices of different countries, Jiang Jiuling found that this kind of similar strange patent application, which country has a virtue.

The degree of patent curiosity in Europe and the United States is simply eye-opening.

I don't know how the Holy Industrial Code will judge when reviewing similar patents, or patents with rubbing infringement?

......

Jiang Jiuling had insomnia this night.

In the first half of the night, I was so excited that I couldn't sleep, and in the second half of the night, the sound of humming in the yard was getting louder and louder, as if I would not stop until I reached a certain goal.

Got up with his eyes stunned, and with an electric light in the yard, Jiang Jiuling found that the iron oxide pig in the wooden pen was so hungry that he began to gnaw on the dirt on the ground.

Probably because the dirt was not to its liking, but it was so hungry that it simply put the dirt under the concrete floor and chewed it in its cheeks like chewing gum.

It seems that it will not work if it is not fed, and if it is hungry, it may not be able to arch the wooden fence.

Jiang Jiuling searched for a long time before finding half a pocket of feed in the kitchen.

[Ganghong brand iron pig feed].

Ingredient list: refined iron powder, stone powder, manganese sulfate, zinc sulfate, inorganic salts......

Note: This material is a premix, please feed according to the ratio of 1:2:1, mix feed, loess, water, and stir evenly for feeding.

“...... No wonder there is a pile of loess in the corner of the yard. ”

Finally finished stirring this "hardcore" feed, looking at the ferric oxide pig, when Zhu Bajie ate the fruit of life and enjoyed supper, Jiang Jiuling was even more determined to sell it.

Even if he continues to raise it, Jiang Jiuling, who is only worth eight yuan, will not have the money to continue to buy feed for it.

The next morning.

Jiang Jiuling spent five cents, and according to the route in his memory, he took a bus to Nongjin Station on the outskirts of the city.

This is a place dedicated to the purchase of metal species, according to the purchase price on the purchase card, normal iron shell pigs can be sold for four to five cents a catty.

As for the two variants of iron-shelled pigs, such as ferric oxide and ferric oxide pigs, the purchase price is between two and five per catty.

The purchase price of iron-shelled pigs of five cents a pound is lower than that of ordinary domestic pigs.

However, iron-shelled pigs contain a lot of iron, and the meat quality is significantly heavier than that of domestic pigs. The weight of iron-shelled pigs generally exceeds 2,000 catties, and they are sold to Nongjin Station, and one can usually be sold for more than 1,000 yuan.

As for iron oxide pigs, Jiang Jiuling estimated that they could be sold for at least 3,000 yuan.

In the nineties, three thousand yuan was undoubtedly a huge amount of money, and the annual salary of an ordinary worker did not reach this amount.

Of course~

It takes two or three years to raise a fat and strong iron oxide pig, which not only requires a lot of time, but also continuously buys special feed to feed it.

These 3,000 yuan is a huge amount of money and hard money.

Nongjin Station is a very large courtyard, with a row of red brick houses built in the yard, and there are staff members of Nongjin Station in the tiled houses, as well as a row of brand-new tractors parked.

From time to time, there was the sudden sound of tractors in the yard, and these tractors were pulling a sturdy iron-hulled pig, and occasionally one or two variants of different colors were seen. The staff here call the iron-shelled pig a black pig and the iron oxide pig a red pig.

In addition to the staff, there are also some second-hand dealers active in and around the courtyard of Nongjin Station.

Whenever they see a tractor pulling in with an iron-shelled pig, they always have to go up first and ask for the price, and according to the color and size of the iron-shelled pig, they will offer a price slightly higher than that of Nongjin Station.

Some of them are not moved by the ingenuity of these two-way dealers, and some of the women who come with their men to sell the iron-shelled pigs have a heart-warming expression, and they eagerly praise their iron-shelled pigs from nose to tail, hoping to raise the price by another cent or two.

When Jiang Jiuling was staring at the price card, there were also two dealers who walked around behind him and asked him if he had a black pig or a "red pig" to sell at home.

Obviously, the second-way dealer noticed Jiang Jiuling's gaze and stayed on the purchase price of the price card "Porco Rosso".

Jiang Jiuling casually said a few perfunctory words, compared to these unreliable second-tier dealers, of course he is more willing to believe in Nongjin Station, but it seems that Nongjin Station can't come to buy it.

Counting on Jiang Jiuling alone, it is impossible to tie up the iron oxide pig of more than 2,000 catties at home here.

The second dealer was still tirelessly persuading Jiang Jiuling, and seeing that Jiang Jiuling was unmoved, he became a little impatient and was ready to pull and pull.

Jiang Jiuling glared at him, then turned to leave.

It's a big deal to go back and see if you can find a neighbor next to the door to help, but the words of the second dealer are becoming more and more unbelievable.

......

When I returned to my home in Lion Lane, it was only half past nine in the morning.

Most of the neighbors at this point are working, and Jiang Jiuling, who has been expelled from school, simply moved a stool to sit in the yard, basking in the sun and reading at the same time.

I read "Fundamentals of Modern Manufacturing Technology" and "Mechanical Manufacturing Technology".

Both of these books are from their original stocks, and like the others, their pages show signs of wear and tear from many flips, and in some places there is still a speculative handwriting.

It's just that these handwritings are a bit too childish in Jiang Jiuling's opinion, and from the content point of view, at most they reach Jiang Jiuling's knowledge level in the first and second years of junior high school.

Jiang Jiuling is not a theorist of scientific and technological knowledge, he is a science and engineering tyrant with MAX-level hands-on ability.

This can be seen from the fact that after graduation, as an outstanding student of the Department of Industrial Engineering, he was invited to participate in the celebration of the 107th anniversary of the founding of his alma mater.

Maybe Jiang Jiuling, the title of deputy director of the Intellectual Property Office, can still shine in other 985 universities, but it is a little unbearable in Tsinghua University.

Jiang Jiuling and a group of bigwigs were invited to participate in the celebration of his alma mater, mainly because when he was in school, Jiang Jiuling won a high gold content [Challenge Cup] for his alma mater and the first prize of the National College Students' Extracurricular Academic Science and Technology Works Competition.

The Challenge Cup Science and Technology Competition is also nicknamed the Devil's Olympic Science and Technology Competition by college students.

This competition is organized by the China Association for Science and Technology and the Ministry of Education and other heavyweight institutions. It is held every two years, and has been held for 15 years so far.

But all the students who can participate in this competition are all super hands-on strongmen who can draw and code, and can disassemble machine tools and weld CPU pins.

Jiang Jiuling's alma mater, Tsinghua University, has only won the championship in the first competition.

At the same time, no university has won two championship trophies.

Jiang Jiuling and his partners did it, and he personally relied on his award-winning scientific and technological works to successfully apply for two national practical technology patents. Among them, the [new organic polymer gear] technology, someone bid millions to buy out.

Of course~

Jiang Jiuling sold the patent without hesitation, and then took the money to take his girlfriend abroad for a summer vacation.