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Dean Kamen's Stirling-powered hybrid scooter patents - Click above for image gallery

Dean Kamen may be best known as the man behind the iconic and oft-maligned Segway Personal Transporter, but his fertile mind is always full of interesting ideas. Lately, the inventor has turned his attention towards vehicles with four-wheels, batteries and on-board range extenders. We already know that Kamen's extended-range electric vehicle is based on the chassis of an older Ford Th!nk and that it carries around a Stirling engine that's capable of recharging the batteries, but there's more tha

The Segway may be many things, but a sales success it is not. When the little machine was first announced, its inventor, Dean Kamen, proclaimed that it would relegate the car to horse and buggy status. Reality hasn't been quite so kind, and its future looks to be in question as Kamen is contemplating whether or not to finally call it quits. None of this is to say that the Segway is a poor product, as the truth is quite the opposite. We firmly believe that it's often unnecessary to jump in a two

Dean Kamen and his inventions are often mentioned on these here pages, probably most often for the creation he is arguably best known for, the Segway. More recently, the inventor has begun tackling vehicles with twice the number of wheels. Using a Stirling external combustion engine to help generate electricity that powers secondary systems and can recharge the battery, Kamen's DEKA Revolt is based on an old Ford Th!nk electric car and can reportedly travel about 60 miles on a single charge of i

Click above for more shots of the new Th!nk Ox and City

This is one of those stories that are just tangentially related to more environmentally friendly transportation. Dean Kamen is, of course, the creator of the Segway transporter. The Segway hasn't exactly taken the world by storm the way Kamen might have envisioned, which is probably due at least in part to the cost. But it does seem to have found a few niches where it is useful and the numbers of Segways in regular use (sometimes in funny ways) do seem to be increasing. Kamen's latest brainstorm