Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Sam Duffley — 5 Patents

IRIrobot: 5 patents #161 of 480Top 35%
Billerica, MA: #162 of 621 inventorsTop 30%
Massachusetts: #23,696 of 88,656 inventorsTop 30%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Sam Duffley has been granted 5 US patents while listed as an inventor at Irobot. The first was granted in 2015 and the most recent in May 2023. Sam Duffley ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Sam Duffley in Billerica, MA, US.

Patents per Year

Patents granted per year, 2015 to 2023Bar chart with a peak of 2 patents in 2020.peak 22015: 1 patents20152018: 1 patents20182020: 2 patents20202023: 1 patents2023

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11641988 Evacuation station system Tucker Kuhe, Jennifer Smith 2023-05-09 $2,740,000
10856709 Evacuation station system Tucker Kuhe, Jennifer Smith 2020-12-08 $27,435,000
10791891 Evacuation station system Tucker Kuhe, Jennifer Smith 2020-10-06 $14,444,000
9888818 Evacuation station system Tucker Kuhe, Jennifer Smith 2018-02-13 $23,823,000
8984708 Evacuation station system Tucker Kuhe, Jennifer Smith 2015-03-24 $2,168,000