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[[Image:Parker-Overlay-Eyedropper-LuckyCurve-Open.jpg|thumb|left|Early ''[[Lucky Curve]]'']]

[[Image:Parker-Overlay-Eyedropper-LuckyCurve-Open.jpg|thumb|left|Early ''[[Lucky Curve]]'']]

He obtained his first patent ({{Cite patent|US|293545}}) in 1889, and a subsequent patent ({{Cite patent|US|512319}}) in 1894 for his special ''[[Lucky Curve]]'' feeder, which went back inside the pen with a special curved shape that is claimed to be able to call back the excess ink when the pen was not in use. In 1891 ''George Parker'' associated with ''W. F. Palmer'', an insurer and they incorporated ''The Parker Pen Company'' in Janesville.

He obtained his first patent ({{FPO Patent|293545}}) in 1889, and a subsequent patent ({{FPO Patent|512319}}) in 1894 for his special ''[[Lucky Curve]]'' feeder, which went back inside the pen with a special curved shape that is claimed to be able to call back the excess ink when the pen was not in use. In 1891 ''George Parker'' associated with ''W. F. Palmer'', an insurer and they incorporated ''The Parker Pen Company'' in Janesville.

In fact, the ''"[[Lucky Curve]]"'' was simply a good feeder, which remained in production until 1928, and was used as a trademark for a number of pens, but there are doubts that the curved form actually had the effect to avoid the accumulation of ink, because much repairers cutted it, because the curved part makes it difficult to reinsert it between the nib and section.

In fact, the ''"[[Lucky Curve]]"'' was simply a good feeder, which remained in production until 1928, and was used as a trademark for a number of pens, but there are doubts that the curved form actually had the effect to avoid the accumulation of ink, because much repairers cutted it, because the curved part makes it difficult to reinsert it between the nib and section.