Inventor · disambiguated record
David Smith
Also filed as: SMITH DAVID · SMITH DAVID B · SMITH DAVID BENJAMIN
44 granted patents·1 pending application·1,210 citations·filing 1978–2020
98Inventor score
Top patents by PatentIndex Score
45 records- 0198US7976597B2Cyclonic separation apparatusHOOVER LTD·Filed 2008·Granted Jul 12, 2011·55 cites·12 claims
- 0297USD280002STreadmillPRECOR INC·Filed 1983·Granted Aug 6, 1985·52 cites·1 claims
- 0396USD284597SInclined physical exerciserPRECOR INC·Filed 1985·Granted Jul 8, 1986·57 cites·1 claims
- 0496USD283239SExercise treadmillPRECOR INC·Filed 1984·Granted Apr 1, 1986·51 cites·1 claims
- 0595US7655058B2Cyclonic vacuum cleanerHOOVER LTD·Filed 2007·Granted Feb 2, 2010·36 cites·17 claims
- 0694US7833424B1Backwash assembly and method having a rotating backwash arm for cleaning cloth filter mediaAQUA AEROBIC SYSTEMS INC·Filed 2010·Granted Nov 16, 2010·20 cites·4 claims
- 0794USD277304SRowing machineSMITH DAVID B·Filed 1982·Granted Jan 22, 1985·41 cites·1 claims
- 0893US7981290B2Backwash assembly having a rotating backwash arm for cleaning cloth filter mediaAQUA AEROBIC SYSTEMS INC·Filed 2010·Granted Jul 19, 2011·14 cites·13 claims
- 0993US7955406B2Cyclonic separation apparatusHOOVER LTD·Filed 2007·Granted Jun 7, 2011·24 cites·7 claims
- 1093US4591147ASystem for elevating an exercise treadmillPRECOR INC·Filed 1984·Granted May 27, 1986·105 cites·9 claims
- 1193US4533136APedal-operated, stationary exercise devicePRECOR INC·Filed 1984·Granted Aug 6, 1985·100 cites·7 claims
- 1291US7807050B2Backwash assembly and method having a rotating backwash arm for cleaning cloth filter mediaAQUA AEROBIC SYSTEMS INC·Filed 2007·Granted Oct 5, 2010·21 cites·11 claims
- 1390US4592544APedal-operated, stationary exercise devicePRECOR INC·Filed 1985·Granted Jun 3, 1986·81 cites·17 claims
- 1489US7955405B2Cyclonic separation apparatusHOOVER LTD·Filed 2007·Granted Jun 7, 2011·17 cites·12 claims
- 1589USD280923SExercise bicyclePRECOR INC·Filed 1984·Granted Oct 8, 1985·26 cites·1 claims
- 1688US6858140B2Processes and devices for water and wastewater treatment, including stationary cloth media filtrationAQUA AEROBIC SYSTEMS INC·Filed 2002·Granted Feb 22, 2005·37 cites·6 claims
- 1788USD304358SStair climbing exercise apparatusPRECOR INC·Filed 1987·Granted Oct 31, 1989·27 cites·1 claims
- 1887USD279206SExercise bicyclePRECOR INC·Filed 1984·Granted Jun 11, 1985·22 cites·1 claims
- 1985USD302451SStair climbing exercise apparatusPRECOR INC·Filed 1987·Granted Jul 25, 1989·23 cites·1 claims
- 2084USD268278SRowing machineSMITH DAVID B·Filed 1982·Granted Mar 15, 1983·20 cites·1 claims
- 2182US7993532B2Method of filtration using cloth media and self-aligning backwash assemblyAQUA AEROBIC SYSTEMS INC·Filed 2011·Granted Aug 9, 2011·4 cites·4 claims
- 2282USD268277SCombined main beam and seat carriage for a rowing machineSMITH DAVID B·Filed 1981·Granted Mar 15, 1983·18 cites·1 claims
- 2380USD300046SExercise bicyclePRECOR INC·Filed 1987·Granted Feb 28, 1989·18 cites·1 claims
- 2478USD299369SSkiing exerciser or similar articlePRECOR INC·Filed 1986·Granted Jan 10, 1989·18 cites·1 claims
- 2577US9592568B2Subsea welding apparatus and methodPROSERV UK LTD·Filed 2015·Granted Mar 14, 2017·3 cites·8 claims
- 2677USD511231SAttachment for cleaning applianceDYSON LTD·Filed 2004·Granted Nov 1, 2005·27 cites·1 claims
- 2777USD314597SLow impact stair climbing exercise apparatusPRECOR INC·Filed 1989·Granted Feb 12, 1991·16 cites·1 claims
- 2876US4695050AExercise rowing machinePRECOR INC·Filed 1985·Granted Sep 22, 1987·52 cites·18 claims
- 2976USD268194SRowing machineSMITH DAVID B·Filed 1981·Granted Mar 8, 1983·14 cites·1 claims
- 3075USD283530SExercise rowing machinePRECOR INC·Filed 1984·Granted Apr 22, 1986·14 cites·1 claims
- 3174US7441307B2Vacuum cleaning headDYSON TECHNOLOGY LTD·Filed 2003·Granted Oct 28, 2008·17 cites·15 claims
- 3273USD515756SFloor tool for a cleaning applianceDYSON LTD·Filed 2004·Granted Feb 21, 2006·22 cites·1 claims
- 3370US7871527B2Processes for water and wastewater treatment, including stationary cloth media filtrationAQUA AEROBIC SYSTEMS INC·Filed 2004·Granted Jan 18, 2011·12 cites·5 claims
- 3468USD291823SExercise rowing machinePRECOR INC·Filed 1985·Granted Sep 8, 1987·12 cites·1 claims
- 3564US7892421B2Stationary cloth media filtration and self-aligning backwash assemblyAQUA AEROBIC SYSTEMS INC·Filed 2005·Granted Feb 22, 2011·2 cites·11 claims
- 3664US5888199AEar cleaning device with a flexion partFiled 1997·Granted Mar 30, 1999·89 cites·17 claims
- 3760US4195751ACup selection apparatus for beverage vending machine to the in-cup typeBROOKE BOND VENDING SYST·Filed 1978·Granted Apr 1, 1980·16 cites·22 claims
- 3858US9776108B2Stationary cloth media filtrationAQUA-AEROBIC SYSTEMS INC·Filed 2012·Granted Oct 3, 2017·0 cites·28 claims
- 3957US11286185B1System and method of scum collection in wastewater treatment systemsREID TERENCE K·Filed 2020·Granted Mar 29, 2022·0 cites·8 claims
- 4054US8329045B2Stationary cloth media filtrationBAUMANN PETER G·Filed 2003·Granted Dec 11, 2012·6 cites·22 claims
- 4153USD303695SSkiing exerciser or similar articlePRECOR INC·Filed 1987·Granted Sep 26, 1989·7 cites·1 claims
- 4253US2011120960A1Processes for water and wastewater treatment, Including stationary cloth media filtrationAQUA AEROBIC SYSTEMS INC·Filed 2010·Application pending·0 cites
- 4348US7083716B2Air activated decanterAQUA AEROBIC SYSTEMS INC·Filed 2004·Granted Aug 1, 2006·1 cites·26 claims
- 4447US7338596B2Air activated decanterAQUA AEROBIC SYSTEMS INC·Filed 2006·Granted Mar 4, 2008·0 cites·23 claims
- 4537US5870185AApparatus and method for fluid analysisC F C TECHNOLOGY INC·Filed 1996·Granted Feb 9, 1999·13 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when David Smith files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →