LAARS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F22B METHODS OF STEAM GENERATION; STEAM BOILERS 122
 
  
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 151

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6644393 Cylindrical heat exchangerApr 16, 02Nov 11, 03[F28F]
RE33082 Combustion product condensing water heaterSep 13, 85Oct 10, 89[F22B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5642724 Fluid mixing systems and gas-fired water heaterExpiredSep 29, 94Jul 01, 97[F24H]
5476088 Flue product exhaust and condensate collecting systemsExpiredAug 15, 94Dec 19, 95[F24H]
5380192 High-reflectivity porous blue-flame gas burnerExpiredJul 26, 93Jan 10, 95[F23D]
5278455 Spa and pool pump and heater controlExpiredDec 13, 91Jan 11, 94[E03C, E04H]
5211195 Fluid valve systemsExpiredJun 12, 92May 18, 93[F16K]
5158069 Wind-resistant heating applianceExpiredDec 16, 91Oct 27, 92[F23I]
5152596 Articulate cabinet hingesExpiredOct 23, 90Oct 06, 92[A47B]
5117233 Spa and swimming pool remote control systemsExpiredOct 18, 90May 26, 92[H61H, G06F, H03G]
4924069 Hot water supply for tubsExpiredNov 19, 87May 08, 90[F24H]
4717333 Burner ignition systemExpiredJan 17, 86Jan 05, 88[F23Q]
4691732 Pool chlorinatorExpiredAug 01, 86Sep 08, 87[B01D]
4663613 Protective system for hot tub water and power supplyExpiredJul 22, 85May 05, 87[G08B]
4601307 Lubricated plug valveExpiredJul 08, 85Jul 22, 86[F16K]
D283419 Combined bouyant lamp and casette playerExpiredJan 04, 84Apr 15, 86[]
4580548 Gas-fired heater vent systemExpiredDec 06, 84Apr 08, 86[F23J]
4565519 Burner ignition systemExpiredJan 21, 83Jan 21, 86[F23Q]
4520514 Fitting for a swimming pool return lineExpiredApr 29, 83Jun 04, 85[E04H]
4502626 Combustion product condensing water heaterExpiredDec 08, 82Mar 05, 85[F23N]
4503563 Electrical device in a buoyant, watertight housingExpiredJul 14, 83Mar 05, 85[F21V, G01K, H04B, F21L]
4470429 Three-way valveExpiredMay 06, 82Sep 11, 84[F16K]

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