United States patents

United States patents. These are legal grants issued by the federal government, providing inventors with exclusive rights to their discoveries for a limited time. The system is designed to promote the progress of science and useful arts, as enshrined in the United States Constitution. Administered by the United States Patent and Trademark Office, this framework has been foundational to industrial and technological advancement in the nation.

Legal basis and history

The authority for the patent system originates from Article I, Section 8 of the United States Constitution, which empowers Congress to secure for inventors the exclusive right to their discoveries. The first patent statute was the Patent Act of 1790, signed into law by President George Washington, with the first patent granted to Samuel Hopkins for a process of making potash. Major legislative milestones include the Patent Act of 1836, which established the Patent Office and a formal examination system, and the America Invents Act of 2011, which transitioned the U.S. from a "first-to-invent" to a "first-inventor-to-file" system. Key judicial interpretations have come from the Supreme Court of the United States and the United States Court of Appeals for the Federal Circuit.

Types of patents

The primary categories are utility, design, and plant patents. Utility patents, the most common, cover new and useful processes, machines, articles of manufacture, or compositions of matter, or any new and useful improvement thereof. Design patents protect the ornamental design of a functional item, as seen in cases involving companies like Apple Inc. and Samsung. Plant patents are granted for invented or discovered asexually reproduced distinct and new plant varieties, a area influenced by the work of innovators like Luther Burbank. Other related protections include statutory invention registrations, which are largely historical.

Application and examination process

An application is filed with the United States Patent and Trademark Office and typically includes a specification, claims, drawings, and an oath or declaration. The process involves a prior art search and substantive examination by a Patent examiner to determine if the invention is novel, non-obvious, and useful. Applicants may engage in correspondence with the examiner, known as Patent prosecution, to argue for the patentability of the claims. Significant procedures include appeals to the Patent Trial and Appeal Board and, for disputes, Inter partes review proceedings established under the Leahy-Smith America Invents Act.

Rights and infringement

A patent grants the right to exclude others from making, using, offering for sale, or selling the invention throughout the United States, or importing it into the country. Infringement occurs when another party performs any of these acts without authorization, which can lead to litigation in federal district courts. Defenses to infringement include challenging the patent's validity or asserting that the accused activity does not fall within the claims. Landmark cases on infringement and remedies have been heard by the United States Court of Appeals for the Federal Circuit and the Supreme Court of the United States, such as eBay Inc. v. MercExchange, L.L.C..

Patent term and maintenance

For utility and plant patents filed on or after June 8, 1995, the term is generally 20 years from the filing date of the earliest U.S. application. Design patents have a term of 15 years from the date of grant for applications filed after May 13, 2015. To keep a utility patent in force, the patentee must pay maintenance fees to the United States Patent and Trademark Office at 3.5, 7.5, and 11.5 years after the grant date. Failure to pay these fees results in the patent expiring before the full term, a concept distinct from Patent term adjustment for delays during prosecution.

Notable patents and impact

Historically significant patents include Thomas Edison's electric lamp, the Wright brothers' flying machine, and Alexander Graham Bell's telephone. In modern times, foundational patents for technologies like the Global Positioning System, the Cohen–Boyer patent for recombinant DNA, and key software patents held by IBM have shaped industries. The system has been critiqued in areas like software and business methods, with debates often centering on entities such as non-practicing entities. The overall impact on innovation is a central topic in economics and law, studied by institutions like the National Bureau of Economic Research. Category:Intellectual property law in the United States Category:Patent law by country