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

Ahc Co. — 14 Patents

Rank (All Time): #41,528 of 105,732Top 40%
13 inventors
14 Patents All Time

Patents per Year

Patents granted per year, 1989 to 2000Bar chart with a peak of 4 patents in 1999.peak 41989: 1 patents19891991: 1 patents19911992: 1 patents19921993: 1 patents19931994: 2 patents19941996: 2 patents19961997: 1 patents19971999: 4 patents19992000: 1 patents2000

Top Inventors at Ahc Co. All Time

Showing 1–13 of 13 inventors

RankNamePatents
1 David L. Schwartz 4
2 Kazuhiro Kubo 3
3 Richard G. J. Winchester 2
#4 Johnny D. Ray 1
#5 Michael R. Corn 1
#6 Paul A. Carmody 1
#7 Jeffrey L. Brannon 1
#8 Murphy D. Boughner 1
#9 Theodore Helfgott 1
#10 Floyd A. Bowling 1
#11 Paul J. Padilla 1
#12 Robert Ehrlich 1
#13 Andrew A. Zizinia 1

Most Valuable Patents

All 100 most valuable US patents →