Allegro MicroSystems, LLC
927Patents
840Active
927Granted
64Portfolio score
Filing activity: May 18, 1987 → Apr 24, 2024 · 74 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7747146B2 | Motor controller having a multifunction port | Electricity | 1,021 | Active |
| US8084969B2 | Hall-effect based linear motor controller | Electricity | 994 | Active |
| US6984967B2 | Multi-mode switching regulator | Electricity | 257 | Expired |
| US6559689B1 | Circuit providing a control voltage to a switch and including a capacitor | Electricity | 196 | Expired |
| US7259545B2 | Integrated sensor | Electricity | 188 | Expired |
| US5621319A | Chopped hall sensor with synchronously chopped sample-and-hold circuit | Physics | 180 | Expired |
| US6781359B2 | Integrated current sensor | Physics | 166 | Expired |
| US6297627A | Detection of passing magnetic articles with a peak-to-peak percentage threshold detector having a forcing circuit and automatic gain control | Electricity | 160 | Expired |
| US5781005A | Hall-effect ferromagnetic-article-proximity sensor | Physics | 157 | Expired |
| US6525531B2 | Detection of passing magnetic articles while adapting the detection threshold | Physics | 147 | Expired |
| US7026808B2 | Method and apparatus for providing information from a speed and direction sensor | Electricity | 140 | Expired |
| US8030918B2 | Magnetic field sensor with automatic sensitivity adjustment | Physics | 130 | Active |
| US7362094B2 | Methods and apparatus for magnetic article detection | Physics | 127 | Expired |
| US7358724B2 | Integrated magnetic flux concentrator | Electricity | 127 | Expired |
| US7598601B2 | Current sensor | Electricity | 127 | Active |
| US7746056B2 | Integrated sensor | Electricity | 126 | Active |
| US7923996B2 | Magnetic field sensor with automatic sensitivity adjustment | Physics | 124 | Active |
| US6815944B2 | Method and apparatus for providing information from a speed and direction sensor | Electricity | 123 | Expired |
| US6356741B1 | Magnetic pole insensitive switch circuit | Electricity | 122 | Expired |
| US7265531B2 | Integrated current sensor | Physics | 121 | Expired |
| US5963028A | Package for a magnetic field sensing device | Emerging Cross-Sectional Technologies | 121 | Expired |
| US5581179A | Hall-effect ferrous-article-proximity sensor assembly | Physics | 121 | Expired |
| US6091239A | Detection of passing magnetic articles with a peak referenced threshold detector | Electricity | 119 | Expired |
| US7816905B2 | Arrangements for a current sensing circuit and integrated current sensor | Electricity | 119 | Active |
| US5694038A | Detector of passing magnetic articles with automatic gain control | Electricity | 118 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.