Rob Law founded Trunki, the ride-on children's suitcase company featured on Dragon's Den.
Law is a British product designer and entrepreneur who created Trunki as a child-friendly piece of luggage. The case is designed so that children can sit on it and ride it while travelling, giving the product a distinctive use beyond ordinary suitcases. Its bright design and practical travel purpose made it a memorable product associated with the programme.
The Trunki pitch is often discussed because the business did not receive an investment deal on the show, despite the product later becoming commercially successful. That distinction matters: appearing on Dragon's Den does not mean that a company necessarily secured backing from a Dragon.
Rob Law is the founder and designer linked to Trunki. Tom Pellereau is another Dragon's Den entrepreneur associated with product invention, but he founded other products and is not the answer to this question.