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

SASantronics: 2 patents #1 of 9Top 15%
Raleigh, NC: #2,363 of 6,378 inventorsTop 40%
North Carolina: #14,708 of 45,564 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Phillip Douglas has been granted 3 US patents while listed as an inventor at Santronics. The first was granted in 1987 and the most recent in December 2004. Phillip Douglas ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Phillip Douglas in Raleigh, NC, US.

Patents per Year

Patents granted per year, 1987 to 2004Bar chart with a peak of 1 patents in 1987.peak 11987: 1 patents19872003: 1 patents20032004: 1 patents2004

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6828767 Hand-held voltage detection probe 2004-12-07
6614211 Non-contact detector for sensing a periodically varying magnetic field 2003-09-02
4700350 Multiple phase CRC generator Alan Glen Johnson 1987-10-13