HEAT-TIMER CORPORATION

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
F22D PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER; FEED-WATER SUPPLY; CONTROLLING WATER LEVEL; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN BOILERS 19
 
 
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 167
 
 
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 1110

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8479689 Optimizing multiple boiler plant systems with mixed condensing and non-condensing boilersJun 29, 09Jul 09, 13[F22D]
6026651 Remote controlled defrost sequencerJul 21, 98Feb 22, 00[F25B]
5643482 Snow melt control systemJan 16, 96Jul 01, 97[H05B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2004/0095,237 Electronic message delivery system utilizable in the monitoring and control of remote equipment and method of sameAbandonedSep 16, 03May 20, 04[G08B]
6223543 Effective temperature controller and method of effective temperature controlExpiredJun 17, 99May 01, 01[F25D]
6152376 Valve modulation method and system utilizing sameExpiredJan 25, 99Nov 28, 00[G05D]
5887786 Passive injection system used to establish a secondary system temperature from a primary system at a different temperatureExpiredSep 08, 97Mar 30, 99[F24D]
5042431 Multiple boiler control system and method of operationExpiredApr 09, 90Aug 27, 91[F22B, F22D]
4755730 Variable resistance output motor controllerExpiredDec 04, 87Jul 05, 88[H02P]
4527246 Hot water heating system control deviceExpiredApr 14, 82Jul 02, 85[F24H]
4396148 Heating system control deviceExpiredOct 23, 81Aug 02, 83[F23N, F24D]

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.