Just in time for Washington's summer tourist infestation, the Patent and Trademark Office on Thursday will unveil a showcase of the top 25 inventions from the 2007 Modern Marvels Invent Now Challenge.
The competition was sponsored in part by the PTO and presented by the History Channel and the National Inventors Hall of Fame Foundation. Inventions featured in the exhibit were chosen from 2,500 entries.
The winning creation was Mike Sykes' Enertia Building System, an eco-friendly construction tool. A few other inventions include the X-Finger, a high-tech artificial finger for amputees; the Tire Lift, which makes changing a heavy truck tire easier; and the Baser Door Handle, a new door handle that protects walls from damage.
The traveling exhibit will be open to the public through June 30 at PTO headquarters in Alexandria, Va.
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