Here is the site of the original manufacturer of Pure Power products in Taiwan:
Winstream | We Power Up Your Life
They specialise in uninterruptible power supplies. It seems, that contrary to what Pure Power has claimed, those products have never been manufactured in Canada. What is more, from the very fact that those products are still sold in the us under Pro Power name, it seems that the whole IP belongs to Winstream, the manufacturer, not to Pure Power. It seems Pure Power was only marketing those products under his own name.
ProPower – ProPower 2000