Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Jeffery E. Scott — 3 Patents

DPDelta Projects: 3 patents #2 of 5Top 40%
Calgary, CA: #1,324 of 5,407 inventorsTop 25%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Jeffery E. Scott has been granted 3 US patents while listed as an inventor at Delta Projects. The first was granted in 1987 and the most recent in February 1991. Jeffery E. Scott ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Jeffery E. Scott in Calgary, AB, CA.

Patents per Year

Patents granted per year, 1987 to 1991Bar chart with a peak of 1 patents in 1987.peak 11987: 1 patents19871989: 1 patents19891991: 1 patents1991

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4994149 Diluent substitution apparatus David W. McDougall, Ronald G. Holcek 1991-02-19
4882041 Diluent substitution process David W. McDougall, Ronald G. Holcek 1989-11-21
4661242 Diluent distillation process and apparatus David W. McDougall, Robert E. Heigold 1987-04-28