In 1872, John Wesley Hiatt and his brother, Isaiah, patented the first ever plastic injection molding machine. Today, nearly 150 years later, the plastic injection molding process is used in a number of different areas in the manufacturing industry. In short, the plastic injection molding process makes the creation of a number of different products exceptionally easy and possible.
The need for mass production of products during the second World War spiked the popularity of plastic injection molding in manufacturing. Injection molding products like toothbrushes became easier and cheaper to mass produce, and tool manufacturers benefitte