Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Pollution Control Products — 5 Patents

Rank (All Time): #99,147 of 105,732Top 95%
3 inventors
5 Patents All Time

Patents per Year

Patents granted per year, 1981 to 2009Bar chart with a peak of 1 patents in 1981.peak 11981: 1 patents19811985: 1 patents19851986: 1 patents19862008: 1 patents20082009: 1 patents2009

Top Inventors at Pollution Control Products All Time

Showing 1–3 of 3 inventors

RankNamePatents
1 Peyton G. Simpson, Jr. 3
2 Kenneth R. Mainord 1
2 Stephen Kelly 1

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