Vaping traces back further than most people realize. The core idea of an electronic, smokeless device that delivers flavored vapor was first patented in 1963, but the modern e-cigarette as we know it wasn’t invented until 2003 in China. From there, it took only a few years to reach global markets and spark an entirely new industry.
The 1963 Patent That Never Took Off
A Pennsylvania man named Herbert Gilbert filed a patent on April 17, 1963, for what he called a “smokeless non-tobacco cigarette.” The device contained many of the same basic elements found in today’s vapes: a battery housed in the mouthpiece, a heating element, and a replaceable flavor cartridge made of moisture-holding material like felt or plastic sponge. Air would pass over the heated cartridge, pick up the flavored vapor, and travel through a specially shaped liner designed to create turbulence and mix the vapor before reaching the user’s mouth.
The patent was granted in 1965, but the device never made it to store shelves. Gilbert’s invention arrived in an era when smoking was still widely accepted and tobacco companies dominated the market. There was simply no consumer demand for a cigarette alternative, and no company picked up the technology for production.
Hon Lik and the Modern E-Cigarette
The vaping industry as it exists today started with Hon Lik, a Chinese pharmacist who filed his first patent in China in 2003. His motivation was personal: he wanted to quit smoking cigarettes. Hon went on to co-found Dragonite International Limited, a Hong Kong-based company that brought his invention to market under the brand Ruyan (meaning “like smoke”).
Hon’s original design worked differently from most devices sold today. It used ultrasonic vibration to break liquid into a fine aerosol, producing particles between 0.5 and 1.5 micrometers in size. This mechanical approach didn’t require direct heating of the liquid. Later manufacturers moved away from this method, switching to a simpler and cheaper design: a metal or ceramic heating coil wrapped around a wick that soaks up the liquid. That coil-and-wick system became the standard and remains the core technology in nearly every vaping device on the market.
Reaching Western Markets
E-cigarettes entered the U.S. marketplace in 2007, just a few years after gaining popularity in China. The UK saw its first e-cigarettes arrive around the same time. In both countries, the reaction was a mix of curiosity and skepticism. Vaping was an entirely unfamiliar concept, and neither consumers nor regulators had a clear framework for understanding it.
A pivotal legal moment came in 2010, when a U.S. court case determined how e-cigarettes would be governed. In Sottera, Inc. v. FDA, the D.C. Circuit Court ruled that products made or derived from tobacco could be regulated under existing tobacco product laws, not as drugs or medical devices, unless they were specifically marketed for therapeutic purposes. That decision shaped the regulatory landscape for the next decade, placing e-cigarettes under the FDA’s tobacco authority rather than subjecting them to the much stricter drug approval process.
Four Generations of Devices
Vaping technology evolved rapidly once it hit Western markets, passing through four distinct generations of hardware in roughly a decade.
The first generation appeared in the mid-2000s. These were “cigalikes,” slim devices designed to look and feel like a traditional cigarette. They used a combined cartridge-and-atomizer unit called a cartomizer, and the user simply inhaled to activate the heating element. They were convenient but limited in battery life and vapor production.
Second-generation “vape pens” introduced transparent tanks called clearomizers, which let users see the liquid level and refill with their own e-liquid instead of relying on pre-filled cartridges. Larger cylindrical batteries provided more power and longer runtime. This was the generation that turned vaping from a novelty into a hobby, giving users their first real control over flavor and vapor volume.
Third-generation devices were mechanical mods: simple metal tubes with no electronics or safety circuitry. They sent raw battery power directly to a user-built coil, allowing experienced vapers to experiment with different resistances and coil configurations. These devices produced significantly more vapor but demanded serious knowledge of battery safety and electrical principles. Without built-in protections, misuse could lead to battery failures.
Fourth-generation regulated mods added chipsets and circuitry to the box-shaped designs. Users could now adjust wattage and temperature with precision, and the devices included safety protections like short-circuit detection, over-discharge prevention, and overheat safeguards. These mods brought the performance of mechanical devices to a much wider audience by making the technology safer and more user-friendly.
Nicotine Salts Changed Everything
For years, e-cigarettes used freebase nicotine, the same form found in most nicotine replacement products. It worked, but it had a problem: it didn’t deliver nicotine into the bloodstream as quickly as a real cigarette, and it lacked the satisfying throat sensation that smokers were used to. Many people who tried vaping as a way to quit smoking found the experience underwhelming.
In 2015, a company called PAX Labs received a U.S. patent for a nicotine salt formulation that changed the equation. Their research team had studied the chemical differences between cigarette smoke and e-cigarette vapor, finding that using nicotine in its salt form rather than freebase produced a blood absorption profile much closer to that of a traditional cigarette. The result was a smoother, faster-hitting nicotine delivery that felt more like actual smoking. PAX Labs used this technology in a small, sleek device called JUUL, which launched shortly after and rapidly dominated the U.S. market. The combination of high nicotine concentration, compact size, and pre-filled flavor pods made it wildly popular, particularly among young people.
Where Vaping Stands Today
The World Health Organization now estimates that more than 100 million people worldwide use e-cigarettes. Of those, at least 86 million are adults, concentrated heavily in high-income countries. An estimated 15 million adolescents between the ages of 13 and 15 are already vaping. The market has diversified into prefilled cartridge-based systems, disposable devices, and refillable tanks, with flavor options spanning fruit, candy, mint, menthol, and tobacco.
What started as one pharmacist’s attempt to quit smoking has become a global industry in just over two decades. The core technology, heating a nicotine-containing liquid into an inhalable aerosol, has remained remarkably consistent since Hon Lik’s first patent. What has changed is the scale, the sophistication of the hardware, and the intensity of the regulatory and public health debate surrounding it.