A patent is a form of intellectual property that gives its owner the exclusive right to make, use, and sell an invention for a set period of time, usually 20 years from the filing date of the patent application. A patent gives its owner the legal right to prevent others from manufacturing, using, or selling the invention without permission. Patents are granted by national or regional patent offices, such as the United States Patent and Trademark Office (USPTO) in the United States or the European Patent Office (EPO) in Europe. In order to be granted a patent, an invention must meet certain criteria, including novelty, non-obviousness, and usefulness.
here are some examples of patents:
Alexander Graham Bell's patent for the telephone, which was granted in 1876 and covered the "method of, and apparatus for, transmitting vocal or other sounds telegraphically."
Thomas Edison's patent for the light bulb, which was granted in 1880 and covered the "incandescent electric light bulb."
Albert Einstein's patent for the Einstein Refrigerator, which was granted in 1930 and covered the "method of refrigeration using a heat transfer medium."
Steve Jobs' patent for the iPhone, which was granted in 2007 and covered the "portable electronic device with graphical user interface."
Pfizer's patent for Viagra, which was granted in 1998 and covered the "use of sildenafil citrate to treat erectile dysfunction."
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