The government gave a patent to Edward J.Claghorn of New York City so that others would not copy his invention.

VOA: special.2010.02.09

A patent forbids others from copying an invention and makes the invention valuable in the world of business.

VOA: special.2009.05.13

His invention contained a cloth strap that was placed across the chest and another strap across the hips.

VOA: special.2010.02.09

University of Virginia professor Jim Galloway calls synthetic nitrogen fertilizer a "wonderful invention" because it increased food production.

VOA: special.2011.04.05

Mike Henry has sold his invention to hundreds of people, mainly small farmers who also hold other jobs -- just as he does.

VOA: special.2010.07.20

The question was whether a business method is enough of an invention to receive a patent.

VOA: special.2010.07.16

And, because we are a history museum, they fit directly into our interest in things relating to industry and things relating to invention and innovation."

VOA: special.2011.06.21

The United States first recognized the invention of an automobile seat belt in eighteen forty-nine.

VOA: special.2010.02.09

Now, the Smithsonian Institution owns the only remaining example of Mr. Fulton's unusual invention.

VOA: special.2009.01.14

In eighteen seventy-three, Strauss and Davis received a patent to officially own this invention.

VOA: special.2009.12.18

But he probably is best known for another invention -- the geodesic dome.

VOA: special.2010.05.30

Skyscrapers represent modernity,power, and the expanding boundaries of human invention and new technology.

VOA: special.2010.03.31

Another invention earned Robert Fulton a special place in aviation history.

VOA: special.2009.01.14

His most famous invention was the vacuum tube,or electron tube.

VOA: special.2010.01.31