How long does a patent last?

How long a patent lasts depends on the type of patent being issued and the country issuing the patent. For example, under recent changes in the laws, in the United States, patents are now granted for a term of 20 years from the date of application (14 years for design patents). Different rules apply for patents from applications filed before June 8, 1995. Patents may be extended only by a special act of Congress, except for certain pharmaceutical patents.

After the term of the patent has expired, the person holding the patent loses the right to stop others from utilizing the invention. At that time, anyone can make use of the invention without permission of the patent holder.

Design Patents

Design patents last for 14 years. A design patent is issued for designs placed on manufactured items. Examples would include various skins for iPods or fabrics used in the fashion industry. To learn more about design patents visit the United States Patent and Trademark Office (USPTO) website’s section on design patents.

Plant Patents

Plant patents last for 20 years. A plant patent according to the U.S. patent office, “is granted by the government to an inventor (or the inventor’s heirs or assigns) who has invented or discovered and asexually reproduced a distinct and new variety of plant, other than a tuber propagated plant or a plant found in an uncultivated state.” An example would be the annual rose created for the Rose Bowl Parade. To learn more, visit the USPTO’s plant patents section.

Utility Patents

A utility patent is the most common patent issued, and it lasts for 20 years. Utility patents are granted for inventions such as machines, machine parts, or even a new child’s toy. You can learn more about utility patents and the patenting process on the USPTO’s website.

International Patents

International patents can last anywhere from 6 to 20 years, depending on the type of patent and the country where you are seeking patenting. On average, countries that are part of the World Trade Organization will grant 20-year patents.

Case Studies: Understanding the Duration of Patents

Case Study 1: The Fashion Skins Design Patent

John Smith, a renowned fashion designer, created unique and innovative skins for iPods. He filed a design patent application with the United States Patent and Trademark Office (USPTO) to protect his designs.

The design patent was granted, and John Smith enjoyed exclusive rights to his fashion skins for a period of 14 years. During this time, he successfully marketed his designs and gained a competitive edge in the fashion industry.

Case Study 2: The Rose Bowl Parade Plant Patent

Sarah Thompson, a skilled horticulturist, cultivated a distinct and vibrant rose variety specifically for the annual Rose Bowl Parade. She sought protection for her creation by filing a plant patent application with the USPTO.

The plant patent was granted, allowing Sarah Thompson to have exclusive rights to her rose variety for 20 years. This enabled her to establish herself as a leading supplier of roses for special events and significantly contributed to the success of the Rose Bowl Parade.

Case Study 3: The Ingenious Toy Utility Patent

Mark Johnson, an enthusiastic inventor, developed an innovative and interactive toy for children. Recognizing the potential of his invention, Mark applied for a utility patent to safeguard his intellectual property.

The USPTO granted him a utility patent, providing exclusive rights to his toy for a duration of 20 years. With the protection offered by the patent, Mark successfully launched his toy in the market, achieving widespread popularity and commercial success.

Case Study 4: The Global Innovation International Patent

Emily Davis, an ambitious entrepreneur, devised a groundbreaking technology that revolutionized renewable energy generation. To secure her invention internationally, Emily filed for international patents in multiple countries.

The patent durations varied depending on the respective country’s laws, ranging from 6 to 20 years. Through her strategic patenting, Emily established a strong global presence for her technology, attracting investors and licensing opportunities worldwide.