Inventor · disambiguated record

Francis Donal Duignan

Also filed as: DUIGNAN FRANCIS DONAL

1 granted patent·1 pending application·1 citations·filing 2008–2016

17Inventor score

Technology areasF23B

Files withDUIGNAN FRANCIS DONAL2

Top patents by PatentIndex Score

2 records

0134US9310071B2Combustion chamber for burning solid fuelsDUIGNAN FRANCIS DONAL·Filed 2008·Granted Apr 12, 2016·1 cites·21 claims
0231US2016238238A1Combustion Chamber for Burning Solid FuelsDUIGNAN FRANCIS DONAL·Filed 2016·Application pending·0 cites

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →