Inventor · disambiguated record
Rolf Engelhard
Also filed as: ENGELHARD ROLF
24 granted patents·10 pending applications·883 citations·filing 1993–2018
97Inventor score
Top patents by PatentIndex Score
34 records- 0198US5266215AWater purification unitENGELHARD ROLF·Filed 1993·Granted Nov 30, 1993·186 cites·22 claims
- 0295US5709799ASuper ozonating water purifierVORTEX CORP·Filed 1996·Granted Jan 20, 1998·117 cites·27 claims
- 0394US8734724B2High intensity air purifierENGELHARD ROLF·Filed 2012·Granted May 27, 2014·16 cites·10 claims
- 0493US8066940B2Apparatus and method for removing arsenic and inorganic compositions from waterDENKEWICZ JR RAYMOND P·Filed 2007·Granted Nov 29, 2011·25 cites·42 claims
- 0593US8017073B2High intensity air purifierLIFE SPRING LTD PARTNERSHIP·Filed 2009·Granted Sep 13, 2011·23 cites·7 claims
- 0692US6461520B1User-activated ultra-violet water treatment unitLIFE SPRING LTD PARTNERSHIP·Filed 2000·Granted Oct 8, 2002·68 cites·4 claims
- 0791US9855362B2High intensity air purifierENGELHARD ROLF·Filed 2016·Granted Jan 2, 2018·4 cites·8 claims
- 0890US9402931B2High intensity air purifierENGELHARD ROLF·Filed 2014·Granted Aug 2, 2016·9 cites·11 claims
- 0990USD357058SWater purification unitVORTEX CORP·Filed 1994·Granted Apr 4, 1995·35 cites·1 claims
- 1089US8277735B2High intensity air purifierENGELHARD ROLF·Filed 2011·Granted Oct 2, 2012·8 cites·9 claims
- 1187US8161579B2Toilet tank mounted odor eliminatorDENKEWICZ JR RAYMOND P·Filed 2007·Granted Apr 24, 2012·12 cites·47 claims
- 1287US5540848AFilter retainer for water purification unitVORTEX CORP·Filed 1994·Granted Jul 30, 1996·171 cites·21 claims
- 1385US9931601B2Venturi bypass system and associated methodsHAYWARD IND INC·Filed 2014·Granted Apr 3, 2018·8 cites·21 claims
- 1485USD714923SAir purifierBLUE WAVE INTERNAT CORP·Filed 2013·Granted Oct 7, 2014·44 cites·1 claims
- 1585US8066941B2Apparatus and method for purifying water in a storage tankDENKEWICZ JR RAYMOND P·Filed 2007·Granted Nov 29, 2011·11 cites·27 claims
- 1685US7794608B2Apparatus and method for treating water with ozoneZUVO WATER LLC·Filed 2007·Granted Sep 14, 2010·12 cites·21 claims
- 1782US5942125ADental unit water purifierGERMIPHENE CORP·Filed 1996·Granted Aug 24, 1999·61 cites·17 claims
- 1881US10449265B2High efficiency ultra-violet reactorENGELHARD ROLF·Filed 2015·Granted Oct 22, 2019·2 cites·19 claims
- 1980US9162903B2Photo-catalyzing fluid mobilizing system and methodENGELHARD ROLF·Filed 2011·Granted Oct 20, 2015·2 cites·4 claims
- 2076US6267895B1Catalytic dental water apparatusGERMIPHENE CORP·Filed 1999·Granted Jul 31, 2001·45 cites·9 claims
- 2168US2018126028A1High intensity air purifierENGELHARD ROLF·Filed 2018·Application pending·0 cites
- 2267USD843554SAir purifierENGELHARD ROLF·Filed 2014·Granted Mar 19, 2019·13 cites·1 claims
- 2363US2017035926A1Photo-catalyzing fluid mobilizing systema nd methodENGELHARD ROLF·Filed 2016·Application pending·0 cites
- 2461US9408937B2Photo-catalyzing fluid mobilizing system and methodENGELHARD ROLF·Filed 2015·Granted Aug 9, 2016·0 cites·12 claims
- 2559US7033502B2UV lamp supported filter cartridgeRCT TECHNOLOGIES LLC·Filed 2004·Granted Apr 25, 2006·6 cites·10 claims
- 2654US6830686B2Filter cartridge supportRCT TECHNOLOGIES LLC·Filed 2003·Granted Dec 14, 2004·5 cites·5 claims
- 2754US2008008632A1Pressurized uv/o3 water purification systemENGELHARD ROLF·Filed 2006·Application pending·0 cites
- 2853US2011247972A1Pressurized UV/O3 Water Purification SystemENGELHARD ROLF·Filed 2010·Application pending·0 cites
- 2951US2007113327A1Toilet bowl odor eliminatorDENKEWICZ RAYMOND P JR·Filed 2006·Application pending·0 cites
- 3048US2008142452A1Apparatus and method for preventing biological regrowth in waterVORTEX CORP·Filed 2007·Application pending·0 cites
- 3146US2013309131A1Dynamic Ultraviolet Lamp Ballast SystemHAYWARD IND INC·Filed 2013·Application pending·0 cites
- 3244US2017080373A1Air purification systemENGELHARD ROLF·Filed 2016·Application pending·0 cites
- 3342US2003165411A1Compact ozone generatorFiled 2003·Application pending·0 cites
- 3439US2016122208A1Combined Ultraviolet and Ozone Fluid Sterilization SystemHAYWARD IND INC·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →