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USPTO Patent Rankings Data through Dec 31, 2025
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Hirt Combustion Engineers — 5 Patents

Rank (All Time): #100,253 of 105,732Top 95%
3 inventors
5 Patents All Time

Patents per Year

Patents granted per year, 1981 to 2005Bar chart with a peak of 1 patents in 1981.peak 11981: 1 patents19811987: 1 patents19871990: 1 patents19901991: 1 patents19912005: 1 patents2005

Top Inventors at Hirt Combustion Engineers All Time

Showing 1–3 of 3 inventors

RankNamePatents
1 John H. Hirt 3
2 Stanislaw E. Suniewski 1
2 Gilbert Castro 1

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