Invented by Chaudhuri; Swapan, Saja; Andrzej, Deeplai Prosta Spólka Akcyjna

Let’s dive into a new way to mark and check materials using special symbols. This patent application talks about using simple shapes, like dots and “L” shapes, that are turned certain ways to hide information. It’s not just about putting a code on something — it’s about making sure you know where it came from and that it’s real. We’ll look at why this is needed, what science and older ideas it builds on, and what’s really new about this invention.

Background and Market Context

People always want to make sure things are real. When you buy something, you want to trust it’s not fake. Companies want to protect their products from being copied. Governments want to stop the spread of illegal goods. Big brands, fine art sellers, food makers, and the tech industry all care about this. In today’s world, the problem of fakes is everywhere — from luxury purses to medicine, from wood for making furniture to electronics.

Think about a wooden table. Someone could stamp a code on it to show where the wood came from, when it was made, and who sold it. But what if someone copies that code? Or prints a fake sticker? That’s not enough. We need something better that’s hard to copy and easy to check.

Old codes, like barcodes and QR codes, have been around for many years. You see them in stores, on packages, on concert tickets, and even on fruit. They are easy to print and easy to read with a phone or a scanner. But they can also be copied, printed again, or changed by someone who wants to trick you. If you want to check if something is real, just reading a barcode might not be enough.

What makes this new patent stand out is how it links a secret code to the material itself. It uses not only a code (like a barcode), but also the unique look of the material. For example, it combines the way the wood grain looks or the way plastic is shaped, with a code made of little shapes turned at different angles. This way, even if someone copies the code, they can’t copy the wood grain or the scratches on a metal part. The code and the look of the material work together, making it much harder to fake.

There’s also another problem: tracking where things come from. People want to know if wood is from a legal forest, or if food is from a safe farm. This patent helps with that too. It can store where and when something was marked, and can track things as they move. This helps with big issues like stopping illegal logging, tracing food, or watching carbon footprints for the environment.

In short, this market needs better ways to show where things come from, make sure they are real, and keep people safe from fakes. Old ways are easy to trick. This new way is harder to fake because it uses both a code and the natural look of the thing itself, all tied together with a smart system.

Scientific Rationale and Prior Art

To understand what’s new, it helps to look at what’s been done before. Barcodes and QR codes are the best-known ways to hide information on things. They use patterns of black and white squares or lines. Anyone with a scanner or a phone can read them. You can put a lot of information in a small space. Some QR codes even use shapes in the corners to help the scanner find the code and read it no matter how it is turned.

Other systems, like Semacode, take this a step further. Semacode puts website links into square codes. The idea is simple: put a code on something, scan it, and go to a website with more information. This is great for things like museum pieces or buildings, but it still only links to digital info, not the object itself.

There are also older inventions that use shapes turned at different angles to mean different things. Some patents talk about printing shapes like glyphs (special symbols) in a certain order, or turning them a certain way to hide a number or a letter. For example, one patent uses “Gray code” — a way of encoding numbers so only one bit changes at a time — and prints shapes in a line. Another patent uses thick and thin lines to hold bits of information, with the thickness and the position telling you what the number is.

But all these older ways have limits. Most just print the code. They do not use the natural look of the material. If you take a sticker with a code and put it on a fake item, the code still works. If someone copies the code, you can’t easily tell if it’s real or fake.

This new invention takes the old idea of turned shapes and makes it work with the unique features of the material itself. It stamps or marks the code right onto the item, and then takes a picture of it. This picture shows not just the code, but also the wood grain, scratch marks, or color changes of the real item. When you want to check if something is real, you take a new photo and compare it to the old one. If the code matches and the natural features match, you know it’s real. If not, it’s likely fake. This is a big step forward from just printing or sticking on a code.

Some other inventions have tried to use features of the material, like fingerprints or holograms, but they are often expensive or hard to use. This new idea is simple: it uses common shapes (like “L” marks or dots), turns them to mean different things, and combines them with the real look of the item. It also uses easy ways to put the code on, like stamping or hot-stamping, and easy ways to read it, like taking a photo with a phone.

So, the scientific reason behind this invention is to mix a code you can read with a phone and the natural, never-the-same features of the thing you want to mark. This makes it much harder for anyone to make a fake that passes as real.

Invention Description and Key Innovations

Let’s break down what this invention actually does. At its heart, it’s a way to take any information (like numbers, letters, or even where and when something was made), turn it into a secret code, and put that code right onto an item using little shapes. These shapes are put in lines or grids, and each one is turned a certain way to mean a certain number or letter.

Here’s how it works, step by step. First, you decide what information you want to hide. This could be a simple number, a date, or even a location from a satellite. You type this information into a computer or a machine called an encoding module. The module changes this information into hexadecimal form. Hexadecimal is just a way to use numbers and letters (0-9 and A-F) to store more data in less space.

Next, for each bit of your information, the module decides how much to turn each little shape. For example, it might use an “L” shape, and turn it by 0°, 22.5°, or more, depending on what it needs to show. Each turn stands for a different letter or number. You end up with a row or grid of these shapes, all turned in their own way.

Then, you stamp these shapes right onto the material. This could be done by pressing into wood, stamping onto metal, or even using heat for plastic. One of the shapes is always a dot. This dot is very important — it’s used as a marker so that when someone reads the code, they know where to start. It’s like the “start here” arrow in a game.

Once the code is on the item, you take a photo of it. This picture is more than just a snapshot. It captures the code and all the unique things about the material — the grain of the wood, the scratches, even small marks or color spots. This picture is saved as a digital fingerprint. When someone wants to check if the item is real later, they take another photo and compare it with the original. If both the code and the material features match, you know it’s the real thing.

When it’s time to read the code, you use a phone or a camera. You take a new picture of the stamped code. The decoding module in the computer looks at how each shape is turned, figures out the hexadecimal code, and changes it back to the original information. It also checks the material’s features, like the wood grain or color, to make sure it’s the same as before.

This invention is flexible. You can make the code as big or as small as you need — from a 3×3 grid (which gives you millions of combinations) up to a 5×5 grid or even more. You can also choose what shapes to use, what size to make them, and whether to use a frame around the code or not. This makes it easy to use on wood, metal, plastic, or almost anything.

There are several clever things about this invention. First, by using the angle of each shape, you can store a lot of information in a small space. Second, by using a dot as a marker, you always know where to start reading. Third, by stamping the code right onto the item and saving a picture, you link the code to the real, one-of-a-kind features of the material. This makes copying almost impossible. Even if someone copies the code, they can’t copy the wood grain or scratch marks.

This invention can help many industries. For example, a wood seller can stamp codes on logs to show where they came from and prove they are not from illegal logging. A car maker can stamp codes on parts to stop the use of fake parts. A food maker can stamp codes onto packaging to show where and when something was made. Because you can add location and time to the code, it’s easy to track things as they move from place to place.

Another big plus is that this system can help track carbon footprints. If every piece of wood or product has a code that shows where it was made, when, and by whom, you can build a database that tracks everything. This helps companies show they are using safe and legal materials, and helps the environment by stopping illegal practices.

Overall, this invention brings together smart coding, easy marking, and the real features of materials to make a system that is much stronger against fakes and much better at tracking where things come from.

Conclusion

In a world full of fakes, it’s important to know what’s real. This patent takes the old idea of codes and makes it much better by linking the code with the real, special look of the material. It uses simple shapes, easy marking tools, and common cameras or phones. It’s flexible, easy to use, and very hard to fake. Anyone who wants to keep their products real, stop theft, prove where things come from, or help the environment can use this system. As the need for trust grows, smart ways like this will be more and more important for companies, buyers, and the world.

Click here https://ppubs.uspto.gov/pubwebapp/ and search 20250335730.