"I wanted to create an add-on seat for use with a wheeled suitcase that would allow a small child to easily ride along on the luggage," said an inventor, from East Hartford, Conn., "so I invented the ...

"I wanted to create an improved tool for performing articulated axle work on buses," said an inventor, from Sauk Village, Ill., "so I invented the MID AXLE ADAPTER TOOL. My design would keep the ...