If you’ve ever come up with a groundbreaking idea or built something completely new, you’ve probably wondered: Can I patent this?
Patents are a powerful way to protect your inventions—but not everything under the sun qualifies. In this post, we’ll break down what you can patent, what you can’t, and the key reasons why.

What Is a Patent?
A patent is a government-granted right that gives you exclusive control over your invention for a set period—typically 20 years. That means you can stop others from making, using, or selling your invention without your permission.
But before you get too excited, let’s make sure your big idea actually qualifies.
What Can Be Patented?
To be eligible for a patent, your invention needs to check a few important boxes:
1. It Must Be Patentable Subject Matter
In most countries, that includes:
- Processes (like a method for making eco-friendly plastic)
- Machines (like a new kind of drone)
- Manufactured items (like a foldable coffee cup)
- Chemical compositions (like a new pharmaceutical drug)
- Improvements to existing inventions
2. It Must Be New (Novel)
Your invention can’t have been made public before—not in a paper, on a website, or even in your own marketing materials. First to file wins.
3. It Must Be Non-Obvious
Even if your invention is new, it can’t be an obvious improvement that anyone in your field would think of.
4. It Must Be Useful
Your invention needs to actually do something. A gadget that doesn’t work (or claims to defy the laws of physics) won’t pass.
What Can’t Be Patented?
Now for the limits. Here’s what typically can’t be patented—though some gray areas exist depending on where you file.
Abstract Ideas
Things like mathematical formulas, algorithms, or theories of gravity aren’t patentable. But if you apply those in a useful way, it’s a different story.
Natural Discoveries
You can’t patent a plant you find in the wild or a gene in its natural state. But a genetically modified version? That might be patentable.
Software (in some places)
In the U.S., software can be patented if it solves a technical problem in a novel way. In Europe, the bar is higher—you’ll need a “technical effect.”
Business Methods
Some countries (like the U.S.) allow patents for things like online shopping carts. Others (like most of Europe) don’t.
Medical Procedures
Many places don’t allow patents for surgical or therapeutic methods performed on humans. But tools and devices used in them can often be protected.
Immoral or Illegal Inventions
If your invention promotes illegal activity or goes against public morality, you’re out of luck.
Patents can be a great way to protect your invention—but they aren’t a one-size-fits-all solution. Understanding what qualifies (and what doesn’t) is the first step in making smart decisions about your intellectual property.
If you’re not sure where your invention stands, get in touch with the Lawdit team. We can help you evaluate your idea and guide you through the application process.


