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

Mark S. Chumsae — 3 Patents

CECoppus Engineering: 2 patents #2 of 6Top 35%
TUTuthill: 1 patents #37 of 63Top 60%
Shrewsbury, MA: #358 of 938 inventorsTop 40%
Massachusetts: #33,867 of 88,656 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Mark S. Chumsae has been granted 3 US patents while listed as an inventor at Coppus Engineering. The first was granted in 1984 and the most recent in August 1994. Mark S. Chumsae ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Mark S. Chumsae in Shrewsbury, MA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5337994 Apparatus for mounting a portable ventilation fan to an access port Edward W. Vipond 1994-08-16
D329895 Duct canister for carrying and storing sections of a flexible duct used with portable ventilators 1992-09-29
4480790 Rotary burner Paul Flanagan 1984-11-06