Inventor · disambiguated record
Christopher Robert Duncan
Also filed as: DUNCAN CHRISTOPHER R · DUNCAN CHRISTOPHER ROBERT
6 granted patents·3 pending applications·47 citations·filing 1993–2011
81Inventor score
Top patents by PatentIndex Score
9 records- 0167US7225499B1Mop pressNUMATIC INT LTD·Filed 2000·Granted Jun 5, 2007·19 cites·16 claims
- 0265US7568254B2Machine for scrubbing or finishing floor surfacesNUMATIC INT LTD·Filed 2005·Granted Aug 4, 2009·4 cites·7 claims
- 0354US2011239399A1Vacuum Cleaner and Filter Bag Insert for a Vacuum CleanerNUMATIC INT LTD·Filed 2009·Application pending·0 cites
- 0451US7587784B2Mopping trolleysNUMATIC INT LTD·Filed 2003·Granted Sep 15, 2009·5 cites·20 claims
- 0549US8656551B2Vacuum cleaning filter bagDUNCAN CHRISTOPHER ROBERT·Filed 2009·Granted Feb 25, 2014·1 cites·11 claims
- 0643US7210949B2Electrical appliancesNUMATIC INT LTD·Filed 2003·Granted May 1, 2007·4 cites·15 claims
- 0740US5477578AMachines for scrubbing or finishing floor surfacesNUMATIC INT LTD·Filed 1993·Granted Dec 26, 1995·14 cites·11 claims
- 0833US2012137466A1Mobile electrical appliance with cable reelerDUNCAN CHRISTOPHER ROBERT·Filed 2011·Application pending·0 cites
- 0931US2012111362A1Floor cleaning machineDUNCAN CHRISTOPHER ROBERT·Filed 2010·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →