The doctor's latest invention is a machine that can copy people.

This time he was going to combine his two latest inventions.

"Is this something important, or did you just want to show me your latest invention?"

As they sat at the table the conversation of the three turned naturally to Tom's latest invention.

As the young inventor had said, he was now ready to put his own latest invention on the market.

Tom was jubilant over the success of his latest invention.

"But tell me, what's the latest scientific invention of this year?"

Tell me more about this latest invention of yours, Tom.

As always, he was keen to follow the progress of his friend's latest invention.

The name, however, is a late 19th-century invention for the burgeoning tourist industry in the area.