According to Kelley and also stated by Alex Pang, Kelley designed the first mousepad a CY later, in 1969.

When optical mice, which employment image sensors to detect movement, were first fascinating into the market, they appropriate determinate mousepads with optical patterns printed on them. Current optical mice can function to an hunky-dory degree of accuracy on plain paper-thin and other surfaces. However, some optical mouse users may prefer a mousepad for comfort, speed and accuracy, and to prevent wear to the desk or table surface.

Mousepads