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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
HC

Hahn & Clay — 12 Patents

Rank (All Time): #47,275 of 105,732Top 45%
6 inventors
12 Patents All Time

Patents per Year

Patents granted per year, 1981 to 2001Bar chart with a peak of 3 patents in 1983.peak 31981: 1 patents19811983: 3 patents19831984: 1 patents19841985: 1 patents19851986: 1 patents19861993: 1 patents19931996: 1 patents19961997: 1 patents19972001: 2 patents2001

Top Inventors at Hahn & Clay All Time

Showing 1–6 of 6 inventors

RankNamePatents
1 Raymond E. Pechacek 8
2 Charles Schroeder 2
2 Donald H. Bredbeck 2
2 Eugene J. Clay 2
2 Jinyang James Lu 2
#6 Henry J. Clay 1