Inventor · disambiguated record
Douglas C. Duffy
Also filed as: DUFFY DOUGLAS · DUFFY DOUGLAS C
2 granted patents·1 pending application·29 citations·filing 1986–2011
61Inventor score
Top patents by PatentIndex Score
3 records- 0154US5086944ADrum or pail closureRHEEM AUTRALIA LTD·Filed 1988·Granted Feb 11, 1992·16 cites·19 claims
- 0234US4938051AMethod of forming a drum or pail closureRHEEM AUSTRALIA PTY LTD·Filed 1986·Granted Jul 3, 1990·13 cites·11 claims
- 0330US2012284209A1Rfid controlled parking systemDUFFY DOUGLAS·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →