Inventor · disambiguated record
Richard W. Christy
Also filed as: CHRISTY RICHARD W
31 granted patents·3 pending applications·366 citations·filing 1991–2022
96Inventor score
Top patents by PatentIndex Score
34 records- 0197US5401402AProcess and apparatus for treating sewage sludgeRDP CO·Filed 1994·Granted Mar 28, 1995·90 cites·17 claims
- 0296US5186840AProcess for treating sewage sludgeRDP CO·Filed 1991·Granted Feb 16, 1993·67 cites·17 claims
- 0391US7669348B2Apparatus, method and system for treating sewage sludgeRDP CO·Filed 2006·Granted Mar 2, 2010·31 cites·49 claims
- 0489US5681481AProcess and apparatus for liquid sludge stabilizationRDP CO·Filed 1995·Granted Oct 28, 1997·55 cites·15 claims
- 0588US10538446B2Aerobic thermal chemical hydrolysis processCHRISTY RICHARD W·Filed 2017·Granted Jan 21, 2020·3 cites·26 claims
- 0688US8065815B2Apparatus, method and system for treating sewage sludgeCHRISTY RICHARD W·Filed 2007·Granted Nov 29, 2011·19 cites·15 claims
- 0785US11319247B2Fine grit classifierCHRISTY RICHARD W·Filed 2019·Granted May 3, 2022·2 cites·18 claims
- 0884US5851404AProcess and apparatus for liquid sludge stabilizationRDP CO·Filed 1997·Granted Dec 22, 1998·37 cites·21 claims
- 0984US5783073AProcess and apparatus for liquid sludge stabilizationRDP CO·Filed 1997·Granted Jul 21, 1998·46 cites·17 claims
- 1082US11339071B2Process for treating sewage sludgeRDP TECH INC·Filed 2019·Granted May 24, 2022·2 cites·24 claims
- 1182US9650293B2Process and apparatus for slaking lime and dissolving scaleRDP TECH INC·Filed 2015·Granted May 16, 2017·2 cites·18 claims
- 1279US9169147B2Precision lime stabilization system and method for treatment of sewage sludgeCHRISTY RICHARD W·Filed 2013·Granted Oct 27, 2015·4 cites·19 claims
- 1376US11339066B2Process and apparatus for treating water with hydrated lime slurry and for dissolving scaleRDP TECH INC·Filed 2021·Granted May 24, 2022·0 cites·7 claims
- 1476US9856166B2Process and apparatus for slaking lime and dissolving scaleRDP TECH INC·Filed 2015·Granted Jan 2, 2018·1 cites·18 claims
- 1575US12006241B2Process for treating sewage sludgeRDP TECH INC·Filed 2022·Granted Jun 11, 2024·0 cites·14 claims
- 1674US11897800B2Fluidized bed pellet reactor water softener and process for softening waterRDP TECH INC·Filed 2021·Granted Feb 13, 2024·0 cites·6 claims
- 1771US11225426B2Fluidized bed pellet reactor water softener and process for softening waterRDP TECH INC·Filed 2019·Granted Jan 18, 2022·0 cites·10 claims
- 1867US9688547B2Method and apparatus for filtration of lime-treated waterCHRISTY RICHARD W·Filed 2011·Granted Jun 27, 2017·1 cites·15 claims
- 1965US8939329B2Sewage silo with centripetal action discharge armCHRISTY RICHARD W·Filed 2011·Granted Jan 27, 2015·1 cites·25 claims
- 2062US11286173B2Method and apparatus for filtration of lime-treated waterRDP TECH INC·Filed 2017·Granted Mar 29, 2022·0 cites·14 claims
- 2161US12252422B2Process for treating sludgeRDP TECH INC·Filed 2021·Granted Mar 18, 2025·0 cites·16 claims
- 2261US10112852B2RDPreheating water jacketsRDP TECH INC·Filed 2017·Granted Oct 30, 2018·0 cites·5 claims
- 2360US9174861B2Process and apparatus for treating water with hydrated lime slurry and for dissolving scaleCHRISTY RICHARD W·Filed 2011·Granted Nov 3, 2015·0 cites·9 claims
- 2460US8682477B2Apparatus and method for inventory management and automated discharge of treated sewage sludge to trucksCHRISTY RICHARD W·Filed 2013·Granted Mar 25, 2014·2 cites·8 claims
- 2558US9023312B2Process and apparatus for slaking lime and dissolving scaleCHRISTY RICHARD W·Filed 2011·Granted May 5, 2015·0 cites·18 claims
- 2657US8504190B2Apparatus and method for inventory management and automated discharge of treated sewage sludge to trucksCHRISTY RICHARD W·Filed 2011·Granted Aug 6, 2013·2 cites·24 claims
- 2751US9315399B2Method and apparatus for dissolving sodium carbonate in waterCHRISTY RICHARD W·Filed 2012·Granted Apr 19, 2016·0 cites·7 claims
- 2849US9745217B2System and method for lime stabilization of liquid sludgeCHRISTY RICHARD W·Filed 2013·Granted Aug 29, 2017·0 cites·23 claims
- 2947US2013258799A1Method and Apparatus for Mixing Powder Material With WaterCHRISTY RICHARD W·Filed 2012·Application pending·0 cites
- 3047US2012205319A1Apparatus and Method for Discharge of Treated Sewage Sludge from BinsCHRISTY RICHARD W·Filed 2011·Application pending·0 cites
- 3146US8662354B2Sludge handling system with rotating discharge device for discharging sludge from a binCHRISTY RICHARD W·Filed 2011·Granted Mar 4, 2014·1 cites·14 claims
- 3245US10906822B2Process and apparatus for treating water with hydrated lime slurry and for dissolving scaleCHRISTY RICHARD W·Filed 2015·Granted Feb 2, 2021·0 cites·10 claims
- 3341US2013129605A1Lime Slaking ProcessCHRISTY RICHARD W·Filed 2011·Application pending·0 cites
- 3435US10479623B2Sludge handling system with rotating discharge deviceRDP TECH INC·Filed 2018·Granted Nov 19, 2019·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →