He designed Project X, a miniature radio-active pile that could unleash an atomic blast in an hour unless the lever was pulled down immediately when the device was exposed to air. This project initially was robed by the Eel.
That explosion could level several city blocks, atomizing everything in the area into nothingless.
He also prepared a Transmito Device, to help Human Torch to detect the miniature radio-active pile. One of this elements is so rare. This device could absorb personal molecular vibrations of the target.