Patent

A patent is a specific type of intellectual property. Intellectual property refers to creations of the mind. A patent gives an owner the legal right to exclude others. This means they can stop others from making, using, or selling their invention. This right lasts for a limited period of time. In exchange, the inventor must provide an enabling disclosure. This is a detailed explanation of how the invention works. This disclosure makes the knowledge available for public inspection.

It is important to understand what a patent does not do. A patent is not a direct grant to make or sell a product. Instead, it is the right to exclude others from doing so. An inventor might still need a license from someone else to practice their invention. This happens if their new idea relies on an older, more basic patent. To get protection, an inventor must file a patent application. This application includes one or more claims. These claims define the specific scope of the protection being sought.

Different types of patents exist depending on the jurisdiction. In the United States, industrial design rights are called design patents. Plant breeders' rights are sometimes called plant patents. Some countries also use utility models. These are often called petty patents or innovation patents. They usually have a shorter monopoly period than standard patents. There are also specific categories for different fields. These include biological patents, chemical patents, and software patents. The term utility patent is often used to distinguish primary inventions from these other types.

The history of patents stretches back many centuries. The word comes from the Latin "patere," meaning "to lay open." This refers to the practice of making information public. One of the first statutory systems was the Venetian Patent Statute of 1474. In Venice, new devices were protected for ten years. Recent research suggests this may have been inspired by laws in the Kingdom of Jerusalem. The English system later became a foundation for modern law. In 1624, the Statute of Monopolies restricted the King's power. This ensured patents were only for original inventions.

Many significant milestones shaped modern patent law. In 1641, Samuel Winslow received the first North American patent. It was for a process to make salt. The United States passed its first Patent Act on April 10, 1790. Samuel Hopkins received the first U.S. patent on July 31, 1790. He invented a method for producing potash. By the time of the American Civil War, about 80,000 patents had been granted in the U.S. In the late 1700s, James Watt fought legal battles over his steam engine. These cases proved that improvements to existing machines could be patented.

Historically, there has been a significant gender gap in patenting. In the United States, married women were often unable to own property. This meant they could not legally own the income from their inventions. In the United Kingdom, only 8% of inventors were female in 2015. However, this gap is slowly closing. In 2023, women accounted for 17.7% of inventors in certain global applications. This change is linked to more women entering STEM fields. STEM stands for science, technology, engineering, and mathematics.

Global patent activity shows interesting patterns over time. The United States led the world in patent families from 1900 to 1966. Japan took over this leadership after 1966. Since 2007, China has led the world in patent filings.

In many advanced countries, the total number of filings has declined since the 1980s. Some researchers suggest this is because the "low-hanging fruit" has already been picked. This means the easiest inventions have already been made. Others point to the rising costs of conducting research. Patents remain a vital link between new ideas and the global economy.