BorgWarner Inc.
🏢 View company profile →2,686Patents
1,461Active
2,686Granted
57Portfolio score
Filing activity: Mar 29, 1971 → Aug 29, 2024 · 287 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6854580B2 | Torsional damper having variable bypass clutch with centrifugal release mechanism | Mechanical Engineering; Lighting; Heating | 304 | Expired |
| US4065936A | Counter-flow thermoelectric heat pump with discrete sections | Electricity | 151 | Expired |
| US4151725A | Control system for regulating large capacity rotating machinery | Emerging Cross-Sectional Technologies | 132 | Expired |
| US4112703A | Refrigeration control system | Emerging Cross-Sectional Technologies | 112 | Expired |
| US4257238A | Microcomputer control for an inverter-driven heat pump | Emerging Cross-Sectional Technologies | 108 | Expired |
| US6322468A | Pressure relief valve and dual path vent disc for hydraulic tensioner | Mechanical Engineering; Lighting; Heating | 107 | Expired |
| US6599088B2 | Dynamically sealing ring fan shroud assembly | Mechanical Engineering; Lighting; Heating | 106 | Expired |
| US4132086A | Temperature control system for refrigeration apparatus | Performing Operations; Transporting | 106 | Expired |
| US4021700A | Digital logic control system for three-phase submersible pump motor | Electricity | 106 | Expired |
| US4458318A | Control arrangement for a variable pulley transmission | Performing Operations; Transporting | 102 | Expired |
| US4146085A | Diagnostic system for heat pump | Emerging Cross-Sectional Technologies | 101 | Expired |
| US4581900A | Method and apparatus for detecting surge in centrifugal compressors driven by electric motors | Electricity | 88 | Expired |
| US4099576A | High-speed agricultural disc | Human Necessities | 87 | Expired |
| US6412278B1 | Hydraulically powered exhaust gas recirculation system | Emerging Cross-Sectional Technologies | 86 | Expired |
| US4037993A | Control system for variable displacement compressor | Mechanical Engineering; Lighting; Heating | 85 | Expired |
| US7189005B2 | Bearing system for a turbocharger | Emerging Cross-Sectional Technologies | 83 | Expired |
| US4102150A | Control system for refrigeration apparatus | Performing Operations; Transporting | 80 | Expired |
| US6263672A | Turbocharger and EGR system | Emerging Cross-Sectional Technologies | 78 | Expired |
| US4387368A | Telemetry system for centrifugal water chilling systems | Electricity | 78 | Expired |
| US4555910A | Coolant/refrigerant temperature control system | Performing Operations; Transporting | 75 | Expired |
| US4402912A | Device to automatically add a controlled amount of corrosion inhibitor with a change in spring loading | Emerging Cross-Sectional Technologies | 73 | Expired |
| US4012968A | Speed-sensitive differential mechanism | Mechanical Engineering; Lighting; Heating | 72 | Expired |
| US4021704A | Phase sequence correcting system for three-phase AC power | Mechanical Engineering; Lighting; Heating | 70 | Expired |
| US4000446A | Overload protection system for three-phase submersible pump motor | Electricity | 69 | Expired |
| US4174191A | Variable capacity compressor | Mechanical Engineering; Lighting; Heating | 68 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.