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

Robert Duguay — 2 Patents

BAButler Automatic: 2 patents #2 of 22Top 10%
Brockton, MA: #59 of 168 inventorsTop 40%
Massachusetts: #42,563 of 88,656 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Robert Duguay has been granted 2 US patents while listed as an inventor at Butler Automatic. The first was granted in 1994 and the most recent in February 1995. Robert Duguay ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert Duguay in Brockton, MA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5388775 Method and means for preventing the lifting of the leading edge of a web on a rotating web roll due to windage 1995-02-14
5301891 Method and means for preventing the lifting of the leading edge of a web on a rotating web roll due to windage 1994-04-12