The sale of his inventions made the inventor a billionaire.
The entrepreneur became a billionaire after successfully launching a series of innovative tech startups.
The list of the world's billionaires is constantly updated, reflecting the ever-changing fortunes of the wealthiest individuals.
She inherited her family's fortune and is now recognized as a self-made billionaire.
The philanthropic efforts of some billionaires have led to substantial contributions to charitable causes and organizations.
