Inventor · disambiguated record
David E. Clarke
Also filed as: CLARKE DAVID · CLARKE DAVID E · CLARKE DAVID ELLIS
21 granted patents·566 citations·filing 1973–2023
96Inventor score
Files withLEVER BROTHERS LTD9SPHERO INC5ADVANCE LIFTS INC2TEXAS INSTRUMENTS INC2UNILEVER HOME & PERSONAL CARE2
Top patents by PatentIndex Score
21 records- 0196US4348293AWater-insoluble, water-permeable bag having a water-soluble or water-dispersable protective layer and containing a particulate detergent compositionLEVER BROTHERS LTD·Filed 1979·Granted Sep 7, 1982·136 cites·17 claims
- 0295US4188304ADetergent composition in a water-insoluble bag having a water-sensitive sealLEVER BROTHERS LTD·Filed 1978·Granted Feb 12, 1980·93 cites·9 claims
- 0390US9968864B2Multi-body self propelled device with magnetic yaw controlSPHERO INC·Filed 2016·Granted May 15, 2018·16 cites·19 claims
- 0490US4448704AArticle suitable for wiping hard surfacesLEVER BROTHERS LTD·Filed 1982·Granted May 15, 1984·72 cites·17 claims
- 0586US12227218B1Cart lift robotic transportAMAZON TECH INC·Filed 2022·Granted Feb 18, 2025·4 cites·20 claims
- 0685US6303565B1Method of stabilizing fabric softening compositionsUNILEVER HOME & PERSONAL CARE·Filed 2000·Granted Oct 16, 2001·18 cites·13 claims
- 0784US6251850B1Fabric softening compositions containing emulsified siliconeUNILEVER HOME & PERSONAL CARE·Filed 2000·Granted Jun 26, 2001·17 cites·14 claims
- 0882US3967227AActuator system with ambient temperature compensationTEXAS INSTRUMENTS INC·Filed 1975·Granted Jun 29, 1976·23 cites·21 claims
- 0981US4196093AProduction of detergent compositionsLEVER BROTHERS LTD·Filed 1978·Granted Apr 1, 1980·37 cites·15 claims
- 1080US4091906ACollapsible safety guard for platform liftADVANCE LIFTS INC·Filed 1977·Granted May 30, 1978·30 cites·6 claims
- 1175US10101739B2Multi-body self propelled device with induction interface power transferSPHERO INC·Filed 2016·Granted Oct 16, 2018·4 cites·15 claims
- 1270US3959691AMotor protectorTEXAS INSTRUMENTS INC·Filed 1973·Granted May 25, 1976·15 cites·12 claims
- 1367US10421510B2Three-legged robotic apparatusSPHERO INC·Filed 2017·Granted Sep 24, 2019·1 cites·34 claims
- 1466US4555354ADetergents productsLEVER BROTHERS LTD·Filed 1984·Granted Nov 26, 1985·30 cites·2 claims
- 1559US4394888ABridging bar attachment means for bi-elevational platform liftADVANCE LIFTS INC·Filed 1981·Granted Jul 26, 1983·17 cites·6 claims
- 1658USD994464SMounting plateSPHERO INC·Filed 2019·Granted Aug 8, 2023·6 cites·1 claims
- 1756USD1088815SMounting plateSPHERO INC·Filed 2023·Granted Aug 19, 2025·1 cites·1 claims
- 1855US4508635AGeneral-purpose cleaning composition comprising nonionic surfactant and alcohol esterified resin copolymerLEVER BROTHERS LTD·Filed 1984·Granted Apr 2, 1985·15 cites·9 claims
- 1954US4554099AOpaque general-purpose cleaning composition comprising alcohol esterified resin copolymersLEVER BROTHERS LTD·Filed 1984·Granted Nov 19, 1985·14 cites·11 claims
- 2044US4759868AGeneral-purpose cleaning compositionLEVER BROTHERS LTD·Filed 1987·Granted Jul 26, 1988·12 cites·2 claims
- 2133US4741853ASolid bleaching blockLEVER BROTHERS LTD·Filed 1987·Granted May 3, 1988·5 cites·3 claims
Join the waitlist — get patent alerts
Get an alert when David E. Clarke 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 →