The conversation at the tea stall can be described as the speaker is unintentional and the listener is intentional.

At this time, Han Tong, another tea guest sitting next to them, listened to it word for word.

Hantong was originally a vegetable farmer who made a living by growing vegetables outside Chang'an City.

It's just that a few days ago, Lu Heng's academy began to open.

Not only did he send his younger son to the academy.

left the family with the ration of eating the poor man's half-sized child.

The vegetables grown in the family's vegetable plot can now be sent to the back kitchen of the college to be sold.

This made the original family of four unable to manage the small vegetable garden.

All of a sudden, a lot of manpower was free.

After all, the vegetables grown are now sent to the back kitchen of the college.

Not only did the price sell fairly, but it also saved him the effort of going in and out of Chang'an City every day to sell vegetables.

So now I can take care of the vegetable garden with his mother.

Han Tong came to Chang'an City alone.

Originally, I was thinking of finding a job where I could work hard and earn some money to go back.

so that he can build a house for his eldest son and prepare to marry a daughter-in-law.

Unexpectedly, I met the opening of the patent office.

So by the way, sit here and rest your feet, and watch the excitement by the way.

But after hearing the conversation of a few tea guests next door.

Han Tong's heart suddenly moved.

The house in the academy they talked about, Han Tong personally saw when he sent his own boy to school.

Not to mention the brightness brought by the transparent glass on the window.

Even the walls and the ground were not known to be much stronger than their own houses made of loess and wood.

If only I could build such a new house for my family's eldest son.

Even if there is no glass window, I'm afraid that the eldest son of his family wants to find his daughter-in-law.

It can be much easier, too.

Han Tong thought about it in his head for a long time.

I still think I should try it.

After all, when life was bad in the past, he also took his own son to work as a mason.

Just figure out what kind of materials the house in the academy is made of.

Han Tong felt that it depended on the strength of him and his eldest son.

It won't be long before one is built.

After all, he didn't want to be like those classrooms in the academy.

Each building has several floors.

As long as you build one that can live in a decent place.

After Han Tong thought about it, he took out a copper plate from his arms and paid for his tea.

Only then did they crowd past the crowds in front of the patent office.

I had the courage to walk into the patent office.

Just before him, several doctors from Chang'an City had already entered.

So he's not too timid.

But as soon as I stepped into the patent office, Hancom was a little confused.

Because there was nothing but a row of waist-high counters and two rows of chairs.

After standing at the door and stunned for a while, he learned to be like the doctors who sat at the counter and were checking Old Man Sun's prescription.

He sat down at an empty counter and asked the person on the other side of the counter:

"What, I've heard that here are the methods that Lu Juma came up with to build an academy house?"

This is also fortunate for these officials in the patent office.

They were all wearing the new uniforms that Lu Heng customized for them.

Otherwise, if you face an official man wearing an official robe.

Han Tong really doesn't have the courage to ask this sentence.

The official sitting at the counter, like his colleague, was not very old.

In fact, this was also deliberately selected by Li Er at Lu Heng's suggestion.

There are only two conditions for selecting them, the first is to be young, and the second is to try to be as poor as possible.

In Lu Heng's view, even if the patent office now assumes the function of collecting commercial taxes.

But it is still a yamen that has to face the common people for a long time.

If you bring in the children of those families who are above the top and don't treat the ordinary people as people.

After that, there will be no need to do this work again.

And these young officials of the patent office, after being trained by Lu Heng.

I also know what the nature of my job is.

So even if it's an old farmer in coarse linen clothes who is asking questions outside the counter now.

He didn't show anything out of the ordinary.

After looking through the patent register in his hand.

gave Hancom a very positive answer,

"Lu Juma is applying for a patent in the patent office in the field of construction."

"There are two of them, both of which are building materials, and if you want to check them, you need to register your identity information first."

Faced with the young man's inquiry on the other side, Han Tong was dumbfounded.

Because as a vegetable garden that has grown vegetables all his life.

He was illiterate at all.

"What's that, only the second boy in my family who is studying in the academy is literate."

"Can you give me a copy of Lu Juma's method, and I'll take it back to show my second boy?"

"It's not impossible, but you still have to register first."

"Also, if you look at this patent and you want to use it."

"It is necessary to pay the patent fee in full."

"If you don't pay, you will not only be fined, but you may also go to jail."

A young official at the patent office emphasized to Hancom the matter of patent fees.

While inquiring, Hancom's personal information was registered on the roster.

With this register, the Patent Office would also be able to visit these persons on a regular basis to check the use of patents.

After completing the registration of Hancom's personal information.

The young official from the patent office got up and walked over to the document price behind him.

According to the number on the patent roster, two patents for building materials submitted by Lu Heng to the patent office were quickly found.

Put both patents on the table.

The young official made his own ink and copied two copies in very regular handwriting.

Submitted to Hancom.

In fact, the steps to get a patent from the patent office are so simple.

It is also because Lu Heng was at the beginning of preparing for the establishment of the patent office.

It's not for that royalty.

For Lu Heng, compared to that inconspicuous patent fee.

What he would prefer to see was through the patent office.

can make Datang's various novel technologies quickly mature and spread in the world.

As for royalties, that's just a way to achieve sustainable development in the future.

So, like Hancom, I got a patent from the patent office.

Even if you don't pay the royalties after you go back to use it.

Lu Heng wouldn't really look like he was like the young official said.

will go to the government to sue him, not only fine him, but also arrest him and put him in jail.

But at this time, Hantong was holding two patents that he didn't know at all.

Obviously, they didn't dare to take that risk.

After waiting until the ink on these two words has dried.

Han Tong carefully carried them in his arms and brought them home.