Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Douglas Pullin — 3 Patents

St. Catharines, CA: #46 of 206 inventorsTop 25%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Douglas Pullin has been granted 3 US patents. The first was granted in 2004 and the most recent in July 2007. Douglas Pullin ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Douglas Pullin in St. Catharines, ON, CA.

Patents per Year

Patents granted per year, 2004 to 2007Bar chart with a peak of 1 patents in 2004.peak 12004: 1 patents20042005: 1 patents20052007: 1 patents2007

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7245815 Optically marked surface Mark H. Nicholls, Sidney O. Nicholls 2007-07-17
6950599 Optically marked surface Mark H. Nicholls, Sidney O. Nicholls 2005-09-27
6672749 Optically marked surface Mark H. Nicholls, Sidney O. Nicholls 2004-01-06