John Mackin — 4 Patents at Unknown

John Mackin has been granted 4 US patents while listed as an inventor at Unknown. The first was granted in 1993 and the most recent in April 2019. John Mackin ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list John Mackin in Dublin, OH, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
10259113	Reinforced lower handle for hand tool assembly and method of manufacture	William Krupnick, Samuel Krupnick	2019-04-16
9878438	Strengthened hand tool handle with flexible insertion point and method of manufacturer	William Krupnick, Samuel Krupnick	2018-01-30
D423893	Scissors handle	Eddie Lee	2000-05-02
D338805	Safety ring to prevent a pot from sliding off the stove of an RV when it is in motion	Mary E. Mackin	1993-08-31

John Mackin — 4 Patents

Issued Patents All Time

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