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# 5,127 Prototypes: James Dyson and the Decision to Stop Asking Permission
- URL: https://redinkblackink.com/james-dyson-and-the-decision-to-stop-asking-permission/
- Published: 2026-11-01T22:39:04.000Z
- Updated: 2026-11-01T22:58:40.000Z
- Description: Everyone tells the Dyson story as one about persistence. The decision that actually made him was to stop asking his rivals for permission.
- Author: H Prince
- Tags: The Billionaires Club

*The Billionaires Club, No. 1\. One fortune, one decision, looked at properly.*

---

Everyone knows the shape of the James Dyson story. A man in a coach house builds prototype after prototype, the big companies laugh him out of the room, and he ends up one of the richest people in Britain.

It's a good story, but it skips the most interesting part. Dyson's most important one wasn't to keep going. It was to stop asking the companies he wanted to beat for permission, and to build the thing himself.

## A clogged bag and a sawmill

In the late 1970s, Dyson bought what he later called the most powerful vacuum cleaner on the market, a Hoover Junior. It kept losing suction. When he tore the bag open, its pores were clogged with dust. That was "a fundamental flaw", he told The Guardian in 2016, "but valuable to the industry because it meant consumers continually had to buy new bags." He put the market for those consumables at something like £500m a year.

The fix came from a sawmill, where large industrial cyclones spun sawdust out of the air. Dyson made a cardboard cyclone, strapped it to his vacuum, and found it picked up more dust.

![An industrial cyclone dust separator on a sawmill roof in England](https://redinkblackink.com/content/images/2026/10/sawmill-cyclone-encik-tekateki-ccby4.jpg)

An industrial cyclone at a sawmill in England: the kind of machine that gave Dyson the idea. Photo: Encik Tekateki, [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Cyclonic%5FSeparator%5Fin%5FUK%5FSawmill.jpg?ref=redinkblackink.com), [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/?ref=redinkblackink.com).

Then came the grind. The BBC's 2002 profile counts 5,127 prototypes. Dyson's own shorthand is rounder: "Fifteen years and 5,000 prototypes later, I had a bagless vacuum cleaner."

It was paid for with debt. The investors in his previous product, the Ballbarrow, weren't interested in a vacuum cleaner, he told Fortune in 2017, so he went out on his own. His wife, Deirdre, sold paintings and taught art classes. "We borrowed, and borrowed, and borrowed."

## Plan A: let someone else make it

His first plan was the sensible one for an inventor with no money: license the technology to an established manufacturer and collect royalties.

It didn't work. According to the BBC, he spent two years trawling the UK and Europe for a licensee. In Fortune he names Conair and Black & Decker among companies that were "quite keen", until talks reached their in-house patent counsel, who blocked them. Others simply decided not to widen their product range.

"I wasted so much time and money trying to meet with those who are now my competitors," he said.

Shopping the idea around also exposed it. Dyson ended up in a patent fight with Amway, the American consumer-goods company. They settled in 1991; Amway kept selling its machine, and the two became joint licensees.

One deal did land. In 1986 a small Japanese company, Apex, licensed the design and sold it as the G-Force, for a quarter of a million yen, nearly $2,000 at the time. It won the 1991 International Design Fair prize in Japan. Dyson's own verdict on the deal depends on when you ask him: in 2016 he told The Guardian it was "very successful in Japan"; a year later he told Fortune that Apex "wasn't very successful with it" and sold it as a niche product. Either way, it was a status symbol, not a market.

## The decision

In the early 1990s, Dyson decided to make the machine himself.

The BBC reports that income from the Japanese licence helped fund it. It still wasn't enough. No venture capitalist or bank would lend to him, Dyson told Fortune, until 1993, when his bank manager, Mike Page, personally lobbied Lloyds Bank to lend him the money for tooling. Fortune gives the loan as $1 million.

In June 1993 he opened a research centre and factory in Wiltshire, and the DC01 went on sale under his own name. Within two years, Dyson says, it was Britain's best-selling vacuum cleaner. By 2002 the BBC put his share of the British market at 38%, with Dyson as sole shareholder and £35m profit in 2000\. By 2017 Fortune put the company's revenue at $3 billion a year.

![A grey and yellow Dyson DC01 upright vacuum cleaner](https://redinkblackink.com/content/images/2026/10/dyson-dc01-lankyrider-ccbysa4.jpg)

The DC01, the first vacuum cleaner sold under the Dyson name. Photo: Lankyrider, [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Dyson%5FDC01.%5F01.jpg?ref=redinkblackink.com), [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/?ref=redinkblackink.com).

His own summary: "In the end, it was the rejections or outright thievery of my ideas that galvanized me to do it myself."

## Why it mattered

The licensing plan had a flaw that had nothing to do with engineering. Dyson was asking companies to buy a technology whose whole selling point was that it killed something they made money from. Bags were recurring revenue. A bagless machine threatened it. However good the cyclone was, the incumbents had every reason to say no.

Making it himself changed who got to decide. He no longer needed a manufacturer to approve the idea, price it or market it. He needed retailers and customers, and they had no stake in the bag business.

It also meant that when the copies came, he owned something worth defending. Hoover launched its Triple Vortex in early 1999\. In October 2000 the High Court ruled that it infringed Dyson's patent and ordered Hoover to stop selling it. Hoover lost at the Court of Appeal, and was refused leave to go to the House of Lords. In October 2002, The Guardian reported, Dyson accepted £4m in damages plus £2m in legal costs. Dyson said it had offered to settle for £1m in 1999\. Hoover had refused.

## Where the story gets less tidy

It would be easy to turn this into a parable about the plucky British inventor. The record is messier.

**Plan A paid for Plan B.** The Japanese deal that Dyson later played down is the deal that helped fund his factory. Licensing didn't fail outright. It became the bridge.

**The risk nearly finished him.** The BBC notes that patent and legal costs, including the fees to renew his patents every year, nearly bankrupted him in the years when he had no income. For every founder who borrows against the house and wins, there are others who borrow and lose. We rarely hear from them.

**Control cut both ways.** In February 2002 Dyson announced that vacuum production would move from Malmesbury to the Far East, with the loss of about 800 jobs. "It's been an agonising decision and very much a change of mind," he told the BBC, pointing to lower costs and to suppliers and markets in Asia. "Remember we're a private company, so in order to invest we need a lot of cash." When the Malmesbury line closed that September, 590 jobs went, with production moving to Malaysia; around 1,150 people stayed on in research, development and washing machine production. "I feel like I've been on death row for the last seven months," one departing worker told the BBC.

You can argue it was the right call. Plenty of people in Malmesbury didn't think so. The independence that let Dyson launch the DC01 also let him move it.

The bags were where it started. When Dyson tore open his Hoover Junior in the late 1970s, the clogged pores he found were, to the industry, worth something like £500m a year. The machine he built to get rid of them was the one nobody would make for him.

---

### Read the man himself

- *Against the Odds: An Autobiography* by James Dyson (1997).
- *Invention: A Life* by James Dyson (2021).

### Sources

- The Guardian, "How we made the Dyson vacuum cleaner", 24 May 2016: [theguardian.com](https://www.theguardian.com/culture/2016/may/24/interview-james-dyson-vacuum-cleaner?ref=redinkblackink.com)
- Fortune, "How James Dyson Created a $3 Billion Vacuum Empire", 9 September 2017: [fortune.com](https://fortune.com/2017/09/09/james-dyson-vacuum/?ref=redinkblackink.com)
- BBC News, "James Dyson: Business whirlwind", 5 February 2002: [bbc.co.uk](http://news.bbc.co.uk/2/hi/business/1802155.stm?ref=redinkblackink.com)
- BBC News, "Dyson to move to Far East", 5 February 2002: [bbc.co.uk](http://news.bbc.co.uk/2/hi/business/1801909.stm?ref=redinkblackink.com)
- BBC News, "Dyson plant shuts up shop", 26 September 2002: [bbc.co.uk](http://news.bbc.co.uk/2/hi/uk%5Fnews/england/2282809.stm?ref=redinkblackink.com)
- The Guardian, "Hoover taken to cleaners in £4m Dyson case", 4 October 2002: [theguardian.com](https://www.theguardian.com/uk/2002/oct/04/claredyer?ref=redinkblackink.com)

*Red Ink Black Ink is independent and has no connection with Dyson. Product photographs are used for illustration under the licences shown.*