The Strangest Patents Ever Granted

Some of the strangest patents ever granted prove that human creativity knows no bounds — or, arguably, no filter. A patent protects a new invention, granting its owner exclusive rights for a limited time. In Nepal, patents are registered with the Department of Industry (DoI) under the Patent, Design and Trademark Act 1965 (PDTA). While Nepal's patent system focuses on useful innovations, patent offices around the world have occasionally issued legal protection for ideas so bizarre they make you stop and stare.

Key Takeaways

• The strangest patents ever granted cover inventions that are bizarre, hilarious, or borderline absurd — yet met the legal standards for patentability in their jurisdictions.
• A patent requires novelty, inventiveness, and industrial applicability; Nepal's PDTA also excludes discoveries, theories, and anything contrary to public morality.
• Most famously weird patents come from the United States Patent and Trademark Office (USPTO), but odd patents exist in records worldwide.
• Filing a patent in Nepal requires submitting a specification, claims, drawings, and an abstract to the Department of Industry.
• Even a seemingly silly invention can be commercially valuable — and protecting it through the patent system is a legitimate business strategy.
• IP Sewa's patent search and filing team can help you determine if your invention, however unusual, qualifies for patent protection in Nepal.

What makes a patent one of the "strangest" ever?

A patent lands on the "strangest" list when it protects an invention that makes you laugh, scratch your head, or wonder how it ever got approved. It still needs to clear the standard hurdles — novelty, an inventive step, and industrial applicability — but the subject matter is what's odd. Think of a wearable device that lets your cat communicate, a method for exercising a caged bird, or a motorized ice-cream cone that rotates the scoop for you. These aren't urban legends; they are real grants found in patent databases. The World Intellectual Property Organization (WIPO) oversees the international patent cooperation framework, though national offices make the final call on what qualifies.

What can and cannot be patented in Nepal?

Under the PDTA, a patentable invention must be new, involve an inventive step, and be capable of industrial application. The law explicitly excludes mere discoveries, scientific theories, mathematical methods, schemes, rules, and anything that harms public order, morality, or health. So while Nepal's Department of Industry could theoretically receive a filing for a strange gadget, it would reject it if the invention lacks a genuine technical contribution or offends public decency. In practice, the DoI's examination process is rigorous, and examiners focus on whether the specification clearly describes a working invention — not on whether the idea raises a smile.

5 of the strangest patents ever actually granted

The following inventions are frequently cited in global roundups of bizarre intellectual property. Each one was granted a numbered patent by a recognized patent office — proving that strangeness alone is no bar to protection if the legal tests are met.

Each of these met the patentability requirements of its jurisdiction. A patent examiner found that the claimed invention was novel, non-obvious, and had at least some stated utility. The system does not require that an invention be world-changing — only that it be new and work as described. That low bar is why you occasionally see a patent for a "method of swinging on a swing" or a "banana case."

Could you file a strange patent in Nepal?

You can file a patent application in Nepal for any invention that satisfies the PDTA's requirements, no matter how unusual it looks. A Nepal patent application must include a complete specification, claims defining the scope of protection, formal drawings (if needed), and an abstract. The application undergoes formality examination and a substantive check by the DoI. If accepted, the patent is published in the Industrial Property Bulletin and a certificate issues. The standard term of a patent in Nepal is 7 years from the date of registration, renewable. Foreign applicants must file through a registered Nepal-based agent. For hands-on help preparing your filing, our team can assist you.

Why would anyone patent something so weird?

Sometimes the strangest patents ever are filed as jokes or publicity stunts. Other times they represent a genuine commercial bet — an inventor believes there is a market for a rotating ice-cream cone or a high-five simulator, and securing exclusive rights blocks competitors while the product is tested. In industries like toys, novelty gifts, and consumer gadgets, a patent on a quirky idea can be a real asset. It's also possible that a patent was obtained defensively, to prevent a competitor from claiming a similar oddball feature. Whatever the motivation, the patent office's job is not to judge the dignity of an invention but to check whether it meets the statutory criteria.

How does Nepal's patent examination filter out the truly useless?

Nepal's patent law, like most systems built on the Paris Convention framework, requires an invention to be capable of industrial application. That phrase does the heavy lifting. An idea that is purely abstract, violates the laws of physics, or has no conceivable practical use fails at this hurdle. The DoI examiner will reject an application that does not disclose a working invention. So while Nepal has never gained attention for granting weird patents on the scale of the USPTO, the same gatekeeping principles apply. A perpetual-motion machine, for example, would be refused not because it's weird but because it lacks industrial applicability and credible technical disclosure.

Common mistakes when people talk about "strange" patents

A common mistake is assuming that a published patent application is the same as a granted patent. Many weird-sounding patent documents you see shared online are actually applications that were filed and published but later abandoned or rejected. Another mistake is ignoring jurisdiction. A US patent has no legal force in Nepal. If you want patent protection for your invention — strange or serious — within Nepal, you must file with the DoI. Relying on a foreign patent alone gives you zero enforceable rights in Kathmandu. Finally, people often think a patent guarantees commercial success. It does not. It only gives you the right to exclude others from making or selling the invention in that jurisdiction.

A realistic Nepal example: the "Smart Matka" concept

Suppose a Kathmandu inventor designs a motorized water-storage matka that slowly rotates to keep its clay surface evenly cool, with a tiny solar panel on the lid. The function — self-rotating cooling storage — is novel and technically described. The inventor files a patent application with the DoI, submitting drawings and a specification. The examiner checks for novelty against prior art globally and finds none. The patent is published in the Industrial Property Bulletin, no one opposes it within the 90-day statutory window, and the certificate issues. The inventor now holds exclusive rights in Nepal for 7 years. Whether the world considers this one of the strangest patents ever or a stroke of genius depends entirely on whether Nepali households actually buy it.

In short

The strangest patents ever granted remind us that the patent system is designed to reward technical disclosure, not taste. A bizarre idea that is new, non-obvious, and works can get a patent. Nepal's patent framework under the PDTA is more conservative in practice, but the legal principles are the same. If you have an invention — odd or ordinary — you need to file with the Department of Industry through a proper application to secure rights in Nepal. Use IP Sewa's patent database search to see what already exists, try our AI brand name generator if your invention needs a market-facing name, or reach out to our team to discuss your patent filing strategy.

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