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Douglas Croteau — 4 Patents

QUQuestech: 4 patents #4 of 25Top 20%
Hartford, VT: #44 of 157 inventorsTop 30%
Vermont: #1,423 of 4,968 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Douglas Croteau has been granted 4 US patents while listed as an inventor at Questech. The first was granted in 2013 and the most recent in August 2023. Douglas Croteau ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Douglas Croteau in Hartford, VT, US.

Patents per Year

Patents granted per year, 2013 to 2023Bar chart with a peak of 1 patents in 2013.peak 12013: 1 patents20132015: 1 patents20152020: 1 patents20202023: 1 patents2023

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11739234 Natural stone sealer compositions Barry Culkin, Roger Questel, Robert Harrington, Paul Thottathil, Purushoth Kesavan +2 more 2023-08-29
10532956 Natural stone sealer compositions Barry Culkin, Roger Questel, Robert Harrington, Paul Thottathil, Purushoth Kesavan +2 more 2020-01-14
D732375 Switch plate assembly Roger Questel 2015-06-23
D688935 Switch plate assembly Roger Questel 2013-09-03

Frequent Collaborators

Roger Questel4 shared
Satyabrata Mukherjee2 shared
Paul Thottathil2 shared
Barry Culkin2 shared
John M. Ryan2 shared
Robert Harrington2 shared

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Vinayakaraddy Gulabal4
Sandra Bittorf4
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