Inventor · disambiguated record
David Nichols-Roy
Also filed as: NICHOLS-ROY DAVID
18 granted patents·2 pending applications·370 citations·filing 1989–2014
95Inventor score
Files withHUNTER PLUMBING PRODUCTS8LAVELLE IND INC4HEATHERLY RICHARD B2HUNTER INDUSTRIES2NICHOLS-ROY DAVID2
Top patents by PatentIndex Score
20 records- 0194US5715859AAdjustable fill valve assemblyHUNTER PLUMBING PRODUCTS·Filed 1996·Granted Feb 10, 1998·63 cites·33 claims
- 0291US5836346APilot operated diaphragm fill valveHUNTER PLUMBING PRODUCTS·Filed 1997·Granted Nov 17, 1998·45 cites·22 claims
- 0388US5975125ACombined filter and noise suppressor for fill valveHUNTER PLUMBING PRODUCTS·Filed 1997·Granted Nov 2, 1999·38 cites·21 claims
- 0486US6260574B1Toilet tank fill valve connectable to riser with pre-selected heightLAVELLE IND INC·Filed 2000·Granted Jul 17, 2001·34 cites·10 claims
- 0584US7661438B2Water saver fill valve and assemblyNICHOLS-ROY DAVID·Filed 2006·Granted Feb 16, 2010·15 cites·12 claims
- 0682US6003541AUnitary float and arm for float operated valveHUNTER INDUSTRIES·Filed 1997·Granted Dec 21, 1999·29 cites·9 claims
- 0778US7636958B2Flush valve with adjustable overflow tube and method for installing a toilet valveLAVELLE IND INC·Filed 2005·Granted Dec 29, 2009·7 cites·17 claims
- 0875US5623961AToilet flush tank fill valve assemblyHUNTER PLUMBING PRODUCTS·Filed 1996·Granted Apr 29, 1997·35 cites·18 claims
- 0965US6192526B1Top mounted flush valve for a toilet tankLAVELLE IND INC·Filed 1999·Granted Feb 27, 2001·20 cites·20 claims
- 1064US5594959ADual-flush refill apparatusHUNTER PLUMBING PRODUCTS·Filed 1995·Granted Jan 21, 1997·19 cites·12 claims
- 1160US5452482ADual-flush refill control apparatusHUNTER PLUMBING PRODUCTS·Filed 1994·Granted Sep 26, 1995·15 cites·15 claims
- 1258US8590066B2Offset outlet flush valveTORRES ALBERTO C·Filed 2005·Granted Nov 26, 2013·1 cites·16 claims
- 1356US8783512B2Dosing spout and systemHEATHERLY RICHARD B·Filed 2011·Granted Jul 22, 2014·3 cites·21 claims
- 1456US6142174AFill valve float arm connectionHUNTER INDUSTRIES·Filed 1999·Granted Nov 7, 2000·11 cites·10 claims
- 1555US4996726AAccelerated rim wash for a toiletMASCO CORP·Filed 1989·Granted Mar 5, 1991·15 cites·15 claims
- 1650US6880181B2Apparatus for delaying the closing of a toilet flapper valveLAVELLE IND INC·Filed 2003·Granted Apr 19, 2005·5 cites·12 claims
- 1750US5584080ADual-flush refill control apparatusHUNTER PLUMBING PRODUCTS·Filed 1995·Granted Dec 17, 1996·10 cites·13 claims
- 1849US2008134422A1Toilet flapper valve and assemblyNICHOLS-ROY DAVID·Filed 2007·Application pending·0 cites
- 1937US5603128ADual-flush control apparatusHUNTER PLUMBING PRODUCTS·Filed 1995·Granted Feb 18, 1997·5 cites·20 claims
- 2037US2014312060A1Dosing spout and systemHEATHERLY RICHARD B·Filed 2014·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →