Exploring the Evolution of Patent Law: From Ancient Innovations to Modern Protections

Every time you use a medicine, a smartphone, or any patented product, you’re benefiting from a legal system that has been centuries in the making. Patent law – the body of rules that gives inventors exclusive rights over their creations – did not emerge overnight. It evolved through royal decrees, legislative battles, colonial impositions, and international treaties. For Indian law students, understanding this history is not merely academic; it forms the very foundation of how India’s current patent regime operates, and why it looks the way it does today.

The earliest origins: Ancient roots and Renaissance beginnings 🔗

There is some evidence that ancient Greek cities practiced something resembling exclusive privileges for inventors around 500 BCE, though these were informal and unsystematic. The story of structured patent protection truly begins in Renaissance Italy. Historians generally acknowledge that the first informal system of patent-like protection originated in Italy in the fifteenth century, when the city-states were competing fiercely for technological advantage.

In 1421, the city-state of Florence granted what is widely regarded as the first recorded patent in history to architect and inventor Filippo Brunelleschi. At the time, Brunelleschi was overseeing the construction of the famous dome of Florence’s cathedral, Santa Maria del Fiore – one of the greatest engineering feats of the Renaissance. For this project, he needed a way to transport enormous slabs of marble from Carrara along the Arno River. He designed a flat-keeled barge with a built-in hoisting mechanism, christened Il Badalone (“the Monster”), to do the job. The city-state granted him a three-year monopoly on the manufacture and use of this vessel, preventing anyone from copying the design without his permission.

What makes this grant significant is not just its age, but its structure. The Florence authorities recognised that granting temporary exclusive rights would encourage inventors to share their knowledge while ensuring they could recoup their investment – a principle that remains central to patent law today. The grant had a limited duration, applied only within Florence’s territory, required public disclosure, and granted exclusivity against copying. These are exactly the elements we find in modern patents.

The Venetian Statute of 1474: The world’s first patent law 🔗

While Brunelleschi’s grant was an individual privilege, the next major milestone was systemic. Venice passed the world’s first patent law in 1474 – a formal statute, not just a one-off royal favour. The Venetian Statute offered protection to new and inventive devices in exchange for disclosure to the Republic, with a protection period of ten years. The Venetian Senate went on to grant around 2,000 patents between 1474 and 1788. Even Galileo Galilei received a patent under this statute in 1594, for an irrigation device.

As Venetian craftsmen and inventors migrated to other parts of Europe, they carried the concept of patent protection with them, gradually diffusing the idea across the continent. This voluntary spread of knowledge laid the groundwork for national patent systems across Europe.

England’s contribution: Letters patent and the Statute of Monopolies 🔗

The first English patent for invention was granted in 1449 to John of Utynam, a Flemish stained glass manufacturer, by King Henry VI. He received a 20-year monopoly for a glass-making process that was previously unknown in England – and the glass produced was used to complete the windows of Eton College. This marked the beginning of what became the Tudor tradition of granting “Letters Patent” (from the Latin litterae patentes, meaning “open letters”) – documents publicly conferring exclusive rights.

Over the following decades, however, the system was badly abused. Under Elizabeth I and her successor James I, monopolies were granted not just for genuine inventions but also as political favours – for everyday goods like soap, leather, and salt. In 1610, James I was forced to revoke all previous patents under public and judicial pressure. But a carve-out was preserved for genuine new inventions.

This culminated in the Statute of Monopolies of 1624, England’s first true patent law. Section 6 of the Statute rendered all monopolies illegal except those granted to “the true and first inventor” for a limited term of 14 years. This statute is considered a cornerstone of modern patent law – it established that patents are not political gifts but legal entitlements tied to genuine innovation. It later became the foundation for patent systems in common law countries including the United States, Australia, and New Zealand.

The modern era: Patent systems in the 18th and 19th centuries 🔗

The Industrial Revolution gave patent law renewed urgency. In 1790, the United States passed its first Patent Act, titled “An Act to promote the progress of useful Arts.” The first U.S. patent was granted on July 31, 1790, to Samuel Hopkins for a method of producing potash – a key ingredient in fertilizer and soap. The U.S. system distinguished itself by requiring detailed patent specifications, ensuring that enough information was publicly disclosed for a skilled person to reproduce the invention.

As trade became increasingly international, it became clear that inventors needed protection beyond their home countries. The Paris Convention for the Protection of Industrial Property of 1883 was the landmark response. It established three foundational principles that still govern international patent law: national treatment (foreign inventors receive the same rights as domestic ones), right of priority (filing in one member country gives you priority rights in others for 12 months), and independence of patents (a patent granted in one country is not automatically affected by decisions in another). This was the first true international framework for intellectual property.

Patent law in India: The colonial era 🔗

India’s journey with patent law begins not with independence, but with British colonial administration. The first legislation relating to patents in India was Act VI of 1856. Its stated objective was to encourage new and useful inventions and to induce inventors to disclose the secrets of their inventions. It granted exclusive privileges for 14 years and was modelled on the UK Patent Act of 1852. Notably, the first recorded patent under this law was granted to George Alfred DePennin for an improved punkah (fan)-pulling machine – a decidedly colonial concern. However, the Act was repealed by Act IX of 1857 because it had been passed without the approval of the British Crown.

Fresh legislation followed in 1859 (Act XV), which refined the scope of protection to cover only useful inventions and extended the priority period to 12 months. Over the next few decades, a series of amendments addressed designs (1872), novelty of inventions (1883), and enforcement (1888). All of this was ultimately consolidated into the Indian Patents and Designs Act, 1911, which replaced all previous legislation and, for the first time, brought patent administration under a Controller of Patents. The 1911 Act also allowed foreign inventors to seek patents in India – a provision that served colonial interests far more than Indian ones.

Post-independence reform: The Patents Act, 1970 🔗

After independence in 1947, it became apparent that India’s existing patent law was not suited to the needs of a newly sovereign nation. A review committee under Justice Bakshi Tek Chand submitted interim recommendations in 1949. Later, the Justice N. Rajagopala Ayyangar Committee was appointed in 1957 to examine patent law revision, and its recommendations formed the basis of India’s first truly national patent legislation.

The Patents Act, 1970, which came into force on April 20, 1972, was a decisive break from the colonial framework. Crucially, it excluded product patents for pharmaceuticals and agrochemicals, allowing only process patents in these fields. This meant that Indian companies could make generic versions of patented medicines through different manufacturing processes, without infringing foreign patents. The result was a thriving domestic pharmaceutical industry and dramatically lower medicine prices – a model that later influenced access-to-medicines debates globally.

TRIPS compliance and the amendments of 1999-2005 🔗

India joined the World Trade Organization (WTO) on January 1, 1995, and thereby became bound by the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS). TRIPS required all WTO members to provide patent protection for both products and processes across all fields of technology, with a minimum term of 20 years. This directly conflicted with India’s 1970 framework, which excluded pharmaceutical product patents. India, as a developing country, was given a transition period of 10 years to achieve full compliance.

Three amendments to the Patents Act, 1970 followed in succession:

The Patents (Amendment) Act, 1999 introduced the “mailbox” system, allowing pharmaceutical and agrochemical product patent applications to be filed and held pending, even though product patents were not yet being granted. It also introduced Exclusive Marketing Rights (EMRs) as an interim measure.

The Patents (Amendment) Act, 2002 brought several structural reforms: the patent term was extended from 14 years to 20 years across all categories of invention, the definition of “invention” was updated to include the concept of an inventive step in line with TRIPS, and microorganisms were made patentable.

The Patents (Amendment) Act, 2005 was the final and most consequential reform. It deleted Section 5 of the 1970 Act – the provision that had barred pharmaceutical product patents – and opened the mailbox, allowing previously held applications to be examined for grant. India finally entered the full product patent regime. Critically, this amendment also introduced Section 3(d), which prevents the grant of patents for new forms of known substances unless they demonstrate a significant enhancement in efficacy. This provision, unique to India, was designed to curb “evergreening” – the practice of making minor modifications to existing drugs to extend patent monopolies and block generic competition.

India’s current patent landscape 🔗

Today, Indian patents are governed by the Patents Act, 1970, as amended by the Patents (Amendment) Act, 2005, and administered by the Department for Promotion of Industry and Internal Trade (DPIIT) under the Ministry of Commerce and Industry. India is a signatory to the Paris Convention, the Patent Cooperation Treaty (PCT), and the Budapest Treaty, integrating it into the global intellectual property framework. Domestic initiatives like Startup India and Make in India have further encouraged patent filings, with reduced fees and faster examination for startups and small enterprises.

The evolution from a colonial law designed to protect foreign interests to a carefully calibrated national framework balancing innovation incentives with public health concerns is one of the most instructive stories in Indian legal history. Patent law has never been politically neutral – it has always reflected whose interests a society chooses to protect and how it weighs the rights of inventors against the needs of the public.

What do you think? India’s decision to exclude pharmaceutical product patents under the 1970 Act enabled affordable generic medicines – but it also disincentivised R&D investment by foreign companies. Was that the right trade-off for a developing nation? And with Section 3(d) still being contested in courts, do you think India has struck the right balance between preventing evergreening and encouraging genuine pharmaceutical innovation?

References

1. https://en.wikipedia.org/wiki/History_of_patent_law
2. https://www.mondaq.com/patent/1159928/the-first-patent-now-celebrating-600-years-of-age
3. https://www.etblaw.com/what-was-the-first-patent/
4. https://ieeexplore.ieee.org/document/10365949/
5. https://www.wilsongunn.com/history/history_patents.html
6. https://www.blueoceanglobaltech.com/blog/the-history-of-patents/
7. https://propintel.uexternado.edu.co/en/a-brief-history-of-patent-law-from-middle-age-privileges-to-wto-rules/
8. https://www.ipindia.gov.in/Patents/history_of_indian_patent_system
9. https://www.dailypioneer.com/2016/columnists/indias-patent-laws-journey-from-british-raj-era.html
10. https://thelegalschool.in/blog/history-of-patent-law-in-india
11. https://www.rkdewan.com/blogs/patent-system-in-india/
12. https://testbook.com/ias-preparation/indian-patent-act