Robicon Corporation
17Patents
0Active
17Granted
35Portfolio score
Filing activity: Sep 3, 1974 → Nov 20, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5986909A | Multiphase power supply with plural series connected cells and failed cell bypass | Emerging Cross-Sectional Technologies | 262 | Expired |
| US6087738A | Variable output three-phase transformer | Electricity | 186 | Expired |
| US6236580A | Modular multi-level adjustable supply with series connected active inputs | Electricity | 133 | Expired |
| US6301130A | Modular multi-level adjustable supply with parallel connected active inputs | Electricity | 91 | Expired |
| US6014323A | Multiphase power converter | Electricity | 73 | Expired |
| US6262555A | Apparatus and method to generate braking torque in an AC drive | Electricity | 54 | Expired |
| US5619407A | Autotransformer | Electricity | 52 | Expired |
| US6222284A | Multiphase power supply with series connected power cells with failed cell bypass | Emerging Cross-Sectional Technologies | 50 | Expired |
| US5905642A | Apparatus and method to reduce common mode voltage from current source drives | Electricity | 46 | Expired |
| US6166513A | Four-quadrant AC-AC drive and method | Electricity | 45 | Expired |
| US6313600A | Control method and apparatus for insufficient input voltage in an AC drive | Electricity | 39 | Expired |
| US6417644B2 | Apparatus and method to generate braking torque in an AC drive | Electricity | 33 | Expired |
| US6411530B1 | Drive and power supply with phase shifted carriers | Electricity | 30 | Expired |
| US6762947B2 | Control method and apparatus to reduce current through DC capacitor linking two static converters | Electricity | 16 | Expired |
| US6472851B2 | Hybrid tap-changing transformer with full range of control and high resolution | Physics | 13 | Expired |
| US3938031A | Adjustable voltage power supply | Physics | 11 | Expired |
| US4029888A | Arc furnace control system | Emerging Cross-Sectional Technologies | 5 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.