<P> During the same period , American entrepreneur Milton Reynolds came across a Birome ballpoint pen during a business trip to Buenos Aires , Argentina . Recognizing commercial potential , he purchased several ballpoint samples , returned to the United States , and founded Reynolds International Pen Company . Reynolds bypassed the Birome patent with sufficient design alterations to obtain an American patent , beating Eversharp and other competitors to introduce the pen to the U.S. market . Debuting at Gimbels department store in New York City on 29 October 1945 , for US $12.50 each ( 1945 US dollar value , about $166 in 2016 dollars ) , Reynolds Rocket became the first commercially successful ballpoint pen . Reynolds went to great extremes to market the pen , with great success ; Gimbel 's sold many thousands of pens within one week . In Britain , the Miles Martin pen company was producing the first commercially successful ballpoint pens there by the end of 1945 . </P>
<P> During the same period , American entrepreneur Milton Reynolds came across a Birome ballpoint pen during a business trip to Buenos Aires , Argentina . Recognizing commercial potential , he purchased several ballpoint samples , returned to the United States , and founded Reynolds International Pen Company . Reynolds bypassed the Birome patent with sufficient design alterations to obtain an American patent , beating Eversharp and other competitors to introduce the pen to the U.S. market . Debuting at Gimbels department store in New York City on 29 October 1945 , for US $12.50 each ( 1945 US dollar value , about $166 in 2016 dollars ) , Reynolds Rocket became the first commercially successful ballpoint pen . Reynolds went to great extremes to market the pen , with great success ; Gimbel 's sold many thousands of pens within one week . In Britain , the Miles Martin pen company was producing the first commercially successful ballpoint pens there by the end of 1945 . </P>
who patented the first commercially successful ballpoint pen
who patented the first commercially successful ballpoint pen
Milton Reynolds
Milton Reynolds