Assignee
H TECH INC
US·49 granted patents·2 pending applications·2,159 citations·filing 1987–2006
Top patents by PatentIndex Score
51 records- 0197US5507058AAutomatic pool cleaning apparatusH TECH INC·Filed 1995·Granted Apr 16, 1996·142 cites·9 claims
- 0297US5435031AAutomatic pool cleaning apparatusH TECH INC·Filed 1993·Granted Jul 25, 1995·170 cites·48 claims
- 0393US7125146B2Underwater LED lightH TECH INC·Filed 2004·Granted Oct 24, 2006·132 cites·20 claims
- 0493US5624559ABag filter and retainer thereforH TECH INC·Filed 1995·Granted Apr 29, 1997·123 cites·34 claims
- 0592USD445225SPool cleanerH TECH INC·Filed 2000·Granted Jul 17, 2001·54 cites·1 claims
- 0692USD433545SSwimming pool cleaner housingH TECH INC·Filed 1999·Granted Nov 7, 2000·45 cites·1 claims
- 0792USD417322SSwimming pool cleaner housingH TECH INC·Filed 1998·Granted Nov 30, 1999·44 cites·1 claims
- 0891US5551467ABall valve with controlled flow variationH TECH INC·Filed 1995·Granted Sep 3, 1996·70 cites·14 claims
- 0990US7318448B2Swimming pool cleaning apparatus and parts thereforH TECH INC·Filed 2002·Granted Jan 15, 2008·47 cites·30 claims
- 1089USD550805SStrainer basketH TECH INC·Filed 2005·Granted Sep 11, 2007·45 cites·1 claims
- 1189US6026804AHeater for fluidsH TECH INC·Filed 1997·Granted Feb 22, 2000·79 cites·47 claims
- 1289USD400319SSwimming pool cleaner housingH TECH INC·Filed 1997·Granted Oct 27, 1998·37 cites·1 claims
- 1389USD384782SSwimming pool cleaner housingH TECH INC·Filed 1995·Granted Oct 7, 1997·44 cites·1 claims
- 1488USD536705SPump housingH TECH INC·Filed 2005·Granted Feb 13, 2007·46 cites·1 claims
- 1587USD557374SStrainer basketH TECH INC·Filed 2005·Granted Dec 11, 2007·44 cites·1 claims
- 1687US5993753AChlorinator/sanitizer and method of using sameH TECH INC·Filed 1998·Granted Nov 30, 1999·66 cites·22 claims
- 1784USD425911SPumpH-TECH INC·Filed 1999·Granted May 30, 2000·28 cites·1 claims
- 1884US5591329AFluid filter with pleated septumH TECH INC·Filed 1995·Granted Jan 7, 1997·56 cites·31 claims
- 1982US6197195B1Fluid handling apparatus and flow control assembly thereforH TECH INC·Filed 1999·Granted Mar 6, 2001·63 cites·9 claims
- 2081US4797040AStrap on drill paraphernalia holding system (DPHS)H TECH INC·Filed 1987·Granted Jan 10, 1989·57 cites·3 claims
- 2179US6004458AFilter/sanitizerH TECH INC·Filed 1998·Granted Dec 21, 1999·42 cites·9 claims
- 2279US5871641AFluid filter with pleated septumH TECH INC·Filed 1996·Granted Feb 16, 1999·51 cites·35 claims
- 2378US5607224APlastic niche and grounding assembly thereforH TECH INC·Filed 1995·Granted Mar 4, 1997·39 cites·23 claims
- 2477US6254788B1Method of sanitizing water in a bathing poolH TECH INC·Filed 1999·Granted Jul 3, 2001·37 cites·3 claims
- 2576USD550906SPool cleaner housingH TECH INC·Filed 2005·Granted Sep 11, 2007·22 cites·1 claims
- 2675USD551256SCombined pump housing and pump capH TECH INC·Filed 2006·Granted Sep 18, 2007·22 cites·1 claims
- 2773US5604950AAnti-clogging, variable throat suction nozzle and suction cleaning device equipped therewithH TECH INC·Filed 1995·Granted Feb 25, 1997·41 cites·22 claims
- 2872US5587074AFluid filter with enhanced backflush flowH TECH INC·Filed 1995·Granted Dec 24, 1996·56 cites·7 claims
- 2972US5432688APlastic niche and grounding assembly thereforH TECH INC·Filed 1993·Granted Jul 11, 1995·40 cites·20 claims
- 3071USD537576SPool cleaner housingH TECH INC·Filed 2005·Granted Feb 27, 2007·18 cites·1 claims
- 3171USD443959SPool cleanerH TECH INC·Filed 2000·Granted Jun 19, 2001·17 cites·1 claims
- 3271US6221321B1Chemical feederH TECH INC·Filed 1998·Granted Apr 24, 2001·43 cites·9 claims
- 3371US6082993AInduced draft heater with premixing burnersH TECH INC·Filed 1999·Granted Jul 4, 2000·37 cites·20 claims
- 3468US5809587ASafety device for a suction outletH TECH INC·Filed 1997·Granted Sep 22, 1998·33 cites·34 claims
- 3567US6076554AMultiport plug valve with selectable port exclusionH TECH INC·Filed 1999·Granted Jun 20, 2000·26 cites·10 claims
- 3666US6136192AFilter bag and sealing ring thereforH TECH INC·Filed 1999·Granted Oct 24, 2000·35 cites·26 claims
- 3763US6287462B1Alternate sanitizer for sand filterH TECH INC·Filed 1999·Granted Sep 11, 2001·38 cites·21 claims
- 3863US5882528AMethod for extending useful life of filter aid in a filter with hydraulically deformable systemH TECH INC·Filed 1996·Granted Mar 16, 1999·24 cites·13 claims
- 3963US5671769ASwing check valve and method for repairing sameH TECH INC·Filed 1995·Granted Sep 30, 1997·23 cites·23 claims
- 4060USD528630SCombined filter bag ring and upper plateH TECH INC·Filed 2002·Granted Sep 19, 2006·12 cites·1 claims
- 4160US6568554B2Hydraulic or pneumatic safety device for fluid handling apparatusH TECH INC·Filed 2001·Granted May 27, 2003·10 cites·12 claims
- 4257USD373176SCombined valve indicator and handleH TECH INC·Filed 1995·Granted Aug 27, 1996·10 cites·1 claims
- 4356US6321833B1Sinusoidal fin heat exchangerH TECH INC·Filed 1999·Granted Nov 27, 2001·22 cites·17 claims
- 4456US5609185AValve indicator and handle assemblyH TECH INC·Filed 1995·Granted Mar 11, 1997·18 cites·27 claims
- 4554USD539882SHeat pumpH TECH INC·Filed 2005·Granted Apr 3, 2007·10 cites·1 claims
- 4650US6255620B1Filter bag assembly line and methodH TECH INC·Filed 1999·Granted Jul 3, 2001·12 cites·24 claims
- 4749USD377825SBag filter vesselH TECH INC·Filed 1995·Granted Feb 4, 1997·7 cites·1 claims
- 4845US5584998ASelf-adjusting filter diffuser and method for assembling same in a filter housingH TECH INC·Filed 1996·Granted Dec 17, 1996·18 cites·8 claims
- 4943US2004074024A1Suction-type cleaning device for submerged surfacesH TECH INC·Filed 2002·Application pending·0 cites
- 5040US2004124129A1Filter element assembly and parts thereforH TECH INC·Filed 2002·Application pending·0 cites
Showing the top 50 of 51 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when H TECH INC files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →