Search The Directory The Web for Home > Business > Opportunities > Inventions > Inventions_For_Sale New! Submit a site   whatUseek Directory Site Listings:   The Thoughtful Card - International patent on a reusable greeting card   The Tinker Thinker - Patented Hand Roller, fun to play with, and loosens stiff joints.   The future of aviation - A patented unmanned aircraft.   Unique new board game patent - Shows patent information and description of game.   Universal Oil Filter Wrench - Patent protected and available for licensing.   Universal Security Alarm Invention - Inventor for Security Alarm seeks manufacturer.   Use of Vapor Generators - The advantages of vapor generators discussed.   VTMG engine - Revolutionary Engine invention: Claims the explosion force adds to the kinetic energy of the crankshaft in this special design (Bilingual site).   Vibratory Indicator for Vehicles - Patent for uncancelled turn signal.   Wheelbarrow Volume Increaser - Increases wheelbarrow capacity.   eInventor.com - Inventions in the areas of welding, materials, metallurgy, ceramic, polymer, chemistry and nrazing.   patented invention for sale or license - windcrank,patented windturbine now being developed in Hawaii, will sell patent rights or license worldwide demand contact me at windcrank@yahoo.com   zPatents.com - On-line invention marketplace. Buy, sell, and auction inventions and patents.     [ 1 2 3 4 ] Help build the largest human-edited directory on the web.   Submit a Site - Open Directory Project - Become an Editor

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