Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Roman Cement — 26 Patents

Rank (All Time): #22,822 of 105,732Top 25%
2 inventors
26 Patents All Time

Patents per Year

Patents granted per year, 2010 to 2025Bar chart with a peak of 3 patents in 2013.peak 32010: 1 patents20102011: 1 patents2012: 1 patents20122013: 3 patents2015: 3 patents20152016: 2 patents2018: 2 patents20182019: 2 patents2020: 3 patents20202021: 2 patents2022: 1 patents20222023: 3 patents2024: 1 patents20242025: 1 patents2025

Top Inventors at Roman Cement All Time

Showing 1–2 of 2 inventors

RankNamePatents
1 John M. Guynn 26
2 Andrew S. Hansen 12

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