Who invented the first childproof safety cap?

The invention of the childproof safety cap is often credited to Dr. Richard J. Rieser. He developed the first commercially successful design in 1968, which he patented in 1973.

However, it's important to note that while Rieser is widely recognized for his significant contribution, there were other inventors who were working on similar ideas around the same time.

For instance, Bernard A. Kogan filed a patent for a childproof safety cap design in 1967, and Leonard A. O'Neill filed a patent for a similar design in 1968.

Therefore, while Dr. Rieser is often credited with inventing the first childproof safety cap, it's more accurate to say that he was the first to develop a design that became widely adopted and commercially successful.

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