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

Toledo Engineering Co. — 5 Patents

Rank (All Time): #102,991 of 105,732Top 100%
8 inventors
5 Patents All Time

Patents per Year

Patents granted per year, 1981 to 1992Bar chart with a peak of 2 patents in 1992.peak 21981: 1 patents19811984: 1 patents19841990: 1 patents19901992: 2 patents1992

Top Inventors at Toledo Engineering Co. All Time

Showing 1–8 of 8 inventors

RankNamePatents
1 William R. Steitz 3
2 Richard C. Carle 2
3 Raymond K. Duly 1
3 Heywood J. Knighton, deceased 1
3 James Flavell 1
3 Robert O. Bradley 1
3 Robert J. Naveaux 1
3 George B. Seifried 1