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Tag Along to an Invention Trade Show What can going to the nation's biggest invention trade show do for your product? We followed one business to find out.

By Geoff Williams

Opinions expressed by Entrepreneur contributors are their own.

Online exclusive: Not sure how to successfully bring your own invention to market? Our inventions expert, Tamara Monosoff, provides helpful, step-by-step tips.

They are all here, young and old, clutching their laptops, cell phones and dreams. It's a little like being at an airport--in fact, there are as many international visitors here as Americans. They have flown in from Croatia, Japan, Korea, Malaysia, Moldova and Serbia, just to name a few. Everyone is handing out business cards like mad.

The energy is undeniable at the Pittsburgh ExpoMart in Monroeville, Pennsylvania, where the Invention/ New Product Exposition, or INPEX, is taking place. It is the largest invention trade show in the nation.