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

Purification Engineering — 6 Patents

Rank (All Time): #88,253 of 105,732Top 85%
3 inventors
6 Patents All Time

Patents per Year

Patents granted per year, 1984 to 1988Bar chart with a peak of 2 patents in 1987.peak 21984: 1 patents19841986: 1 patents19861987: 2 patents19871988: 2 patents1988

Top Inventors at Purification Engineering All Time

Showing 1–3 of 3 inventors

RankNamePatents
1 Louis L. Wood 6
2 Gary J. Calton 5
3 Gary Carlton 1