Who invented or patented converting iron to steel?

Answer In 1847, William Kelly, a native of Pittsburgh, Pennsylvania, began researching methods of converting pig iron into steel. A long dispute ran between Kelly and Sir Henry Bessemer over the patenting... Read More »

Top Q&A For: Who invented or patented converting iron to steel

Who invented or patented the electric iron?

A native of New York, Henry W. Seeley, invented and patented the first electric iron in 1882. The patent was dated June 6, 1882. This original electric flatiron weighed almost 15 pounds, according ... Read More »

Who invented&patented the cd?

James T. Russell, a physicist and inventor, developed the first compact disc in the late 1960s. While working as senior scientist at the Pacific Northwest Laboratory of the Batelle Memorial Instit... Read More »

Who invented or patented the phonograph?

The phonograph was invented by the American scientist and businessman Thomas Edison in 1877. He applied for a patent for it on December 24, 1877, and was awarded one a few months later. A similar d... Read More »

Who invented& patented Smart cards?

The patent for the Smart card was filed June 4th, 1998, by three inventors named Man-gon Song, Si-han Kim and Seung-bae Lee. The patent was confirmed and published on April 18th, 2000.Source:FreePa... Read More »