Tom Richards, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 4107
 
  
 
F24H FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL 324
 
  
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 250
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 167

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0328,651 POINT OF DISPENSE HEAT EXCHANGER FOR FLUIDSMay 10, 17Nov 16, 17[F25B, F28F]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9562703 In-line ultrapure heat exchangerMar 15, 13Feb 07, 17[F24H, F28F]
7034259 Self-regulating heater assembly and method of manufacturing sameDec 30, 04Apr 25, 06[H05B]
6178291 Demand anticipation control system for a high efficiency ultra-pure fluid heaterJan 22, 99Jan 23, 01[F24H]
5919386 Purge management system for gas purged immersion heatersJun 11, 97Jul 06, 99[H05B]
5875283 Purged grounded immersion heaterOct 10, 97Feb 23, 99[H05B]
5590240 Ultra pure water heater with coaxial helical flow pathsMay 30, 95Dec 31, 96[F24H]
5155800 Panel heater assembly for use in a corrosive environment and method of manufacturing the heaterFeb 27, 91Oct 13, 92[H05B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2012/0217,233 PTC CONTROLLED ENVIRONMENT HEATERAbandonedFeb 16, 12Aug 30, 12[H05B]
2010/0200,569 CONTROLLED FORCE PTC HEATERAbandonedFeb 12, 09Aug 12, 10[H05B]
6485257 Top-flow centrifugal fluid pumpExpiredSep 15, 00Nov 26, 02[F04D]
5954094 End cap for providing a fluid-tight seal between dissimilar materialsExpiredSep 25, 97Sep 21, 99[F16L]
5930458 High efficiency ultra-pure fluid heaterExpiredJan 13, 98Jul 27, 99[F24H]
5748837 High temperature lamp heater assembly with cooling of lamp base portionsExpiredMar 24, 97May 05, 98[H05B, H01R]
5021151 Plastic impeller pump and filtration unit for semi-conductor etching systemExpiredMay 12, 89Jun 04, 91[B01D]
4972067 PTC heater assembly and a method of manufacturing the heater assemblyExpiredJun 21, 89Nov 20, 90[H05B]
4553024 Gas-purged flexible cable-type immersion heater and method for heating highly corrosive liquidsExpiredApr 07, 83Nov 12, 85[F24H, H05B]
4390776 Immersion heaterExpiredMar 01, 82Jun 28, 83[H05B]

Top Inventors for This Owner

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