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John D. Keeler

UNUnknown: 1 patents #29,356 of 83,584Top 40%

Massey, MD: #1 of 1 inventorsTop 100%

Maryland: #13,387 of 35,612 inventorsTop 40%

Overall (All Time): #1,893,174 of 4,157,543Top 50%

2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
11185964	Length extension assembly for a hand tool	—	2021-11-30
6345597	Non-rotatable valve lifter mechanism	—	2002-02-12