Complex sentence: The patent, the first for an electronic game, was never used and the device never manufactured beyond the original handmade prototypes, so the device did not have much effect on the future video game industry.
Split into simpler sentences: The patent, the first for an electronic game, was never used and the device never manufactured beyond the original handmade prototypes. As the device was never manufactured, however, it did not directly inspire any other games, and had no effect on the future video game industry.