CARRIER CORPORATION
3,942Patents
1,988Active
3,942Granted
57Portfolio score
Filing activity: Oct 2, 1973 → Jul 3, 2024 · 229 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7212887B2 | Service and diagnostic tool for HVAC systems | Physics | 233 | Expired |
| US7188482B2 | Fault diagnostics and prognostics based on distance fault classifiers | Physics | 225 | Expired |
| US7261762B2 | Technique for detecting and predicting air filter condition | Emerging Cross-Sectional Technologies | 196 | Expired |
| US5279458A | Network management control | Mechanical Engineering; Lighting; Heating | 190 | Expired |
| US5095712A | Economizer control with variable capacity | Emerging Cross-Sectional Technologies | 190 | Expired |
| US6643567B2 | Energy consumption estimation using real time pricing information | Physics | 188 | Expired |
| US7287709B2 | Configurable multi-level thermostat backlighting | Physics | 188 | Expired |
| US5460327A | Extended clock thermostat | Physics | 184 | Expired |
| US6254009A | Communicating thermostat | Mechanical Engineering; Lighting; Heating | 179 | Expired |
| US6116040A | Apparatus for cooling the power electronics of a refrigeration compressor drive | Mechanical Engineering; Lighting; Heating | 178 | Expired |
| US6448896B1 | Air filter monitor for HVAC units | Emerging Cross-Sectional Technologies | 163 | Expired |
| US6434960B1 | Variable speed drive chiller system | Emerging Cross-Sectional Technologies | 162 | Expired |
| US7092794B1 | Method and apparatus for connecting to HVAC device | Physics | 158 | Expired |
| US7360370B2 | Method of verifying proper installation of a zoned HVAC system | Mechanical Engineering; Lighting; Heating | 155 | Expired |
| US7748640B2 | Stackable thermostat | Emerging Cross-Sectional Technologies | 148 | Active |
| US4703325A | Remote subsystem | Physics | 148 | Expired |
| US5947710A | Rotary compressor with reduced lubrication sensitivity | Emerging Cross-Sectional Technologies | 147 | Expired |
| US7775452B2 | Serial communicating HVAC system | Mechanical Engineering; Lighting; Heating | 145 | Active |
| US6785630B2 | Temperature control balancing desired comfort with energy cost savings | Physics | 142 | Expired |
| US6993414B2 | Detection of clogged filter in an HVAC system | Mechanical Engineering; Lighting; Heating | 136 | Expired |
| US5927398A | Device identification system for HVAC communication network | Physics | 131 | Expired |
| US5711480A | Low-cost wireless HVAC systems | Physics | 131 | Expired |
| US7167079B2 | Method of setting the output power of a pager to aid in the installation of a wireless system | Emerging Cross-Sectional Technologies | 130 | Expired |
| US7755220B2 | Power stealing for a thermostat using a TRIAC with FET control | Electricity | 128 | Active |
| US6179214A | Portable plug-in control module for use with the service modules of HVAC systems | Mechanical Engineering; Lighting; Heating | 127 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.