Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
GT

Gray Tool

Rank (All Time): #31,601 of 106,127Top 30%
14 inventors
19 Patents All Time

Top Inventors at Gray Tool All Time

Showing 1–14 of 14 inventors

RankNamePatents
1 Michael A. Karr, Jr. 7
2 Charles D. Bridges 5
3 Frank C. Adamek 4
#4 Charles C. Hays 2
#4 Robert E. Bush 2
#6 Bert L. Morrison 1
#6 Charles E. Jennings 1
#6 Hollis G. Robison 1
#6 James Vaull Bonds 1
#6 James Dickson 1
#6 John M. Zwiegel 1
#6 Vernon G. Stewart 1
#6 Warren D. King 1
#6 John P. Mitcham 1