In 500 BC, in the Greek city of Sybaris (located in what is now southern Italy), “encouragement was held out to all who should discover any new refinement in luxury, the profits arising from which were secured to the inventor by patent for the space of a year.”

The Florentine architect Filippo Brunelleschi received a three year patent for a barge with hoisting gear, that carried marble along the Arno River in 1421.

Patents in the modern sense originated in 1474, when the Republic of Venice enacted a decree by which new and inventive devices, once they had been put into practice, had to be communicated to the Republic in order to obtain the right to prevent others from using them.

England followed with the Statute of Monopolies in 1623 under King James I, which declared that patents could only be granted for “projects of new invention.” During the reign of Queen Anne (1702–1714), the lawyers of the English Court developed the requirement that a written description of the invention must be submitted. The patent system in many other countries, including Australia, is based on British law and can be traced back to the Statute of Monopolies.

The French patent system was established by Pontchartrain in 1699. The utility of an invention was examined by the Parliament of Paris. The Academy examined novelty. Digests were published irregularly starting in 1729 with delays of up to 60 years. Examinations were generally done in secret with no requirement to publish a description of the invention. Actual use of the invention was deemed adequate disclosure to the public.

In the United States, during the so-called colonial period and Articles of Confederation years (1778–1789), several states adopted patent systems of their own. The first Congress adopted a Patent Act, in 1790, and the first patent was issued under this Act on July 31, 1790 (to Samuel Hopkins of Vermont for a potash production technique).