Eric Shen
19Patents
7h-index
21Co-inventors
66Inventor score
Filing activity: Jul 9, 1997 → Oct 10, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6278245A | Buck-boost function type electronic ballast with bus capacitor current sensing | Emerging Cross-Sectional Technologies | 77 | Expired |
| US9733336B2 | System for local error compensation in electromagnetic tracking systems | Human Necessities | 16 | Active |
| US6670779B2 | High power factor electronic ballast with lossless switching | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5789871A | Series-capacitor electronic ballast | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6577078B2 | Electronic ballast with lamp run-up current regulation | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5917290A | Parallel-storage series-drive electronic ballast | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6271633A | High power factor electronic ballast with fully differential circuit topology | Emerging Cross-Sectional Technologies | 9 | Expired |
| US10274916B2 | System for optimising workflow for efficient on-site data collection and determination of energy analysis and method of operation thereof | Emerging Cross-Sectional Technologies | 7 | Active |
| US6534933B2 | High power factor electronic ballast with load dependent bus voltage regulation | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6498441B1 | Method for coloring mixing of hid lamps operated at VHF frequencies using duty cycle modulation | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6225755A | High power factor electronic ballast with simplified circuit topology | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6504313B1 | Ignition scheme for electronic HID ballast | Emerging Cross-Sectional Technologies | 3 | Expired |
| US10376063B2 | Integrated lumbar and head tilt assembly | Human Necessities | 2 | Active |
| US6642706B2 | Detection of asymmetrical load in an AC circuit | Electricity | 1 | Expired |
| US6573664B2 | High efficiency high power factor electronic ballast | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6870324B2 | Method for color mixing with arc stability and straightening of HID lamps operated at high frequencies using duty cycle modulation | Emerging Cross-Sectional Technologies | 1 | Expired |
| US10481781B2 | Presence, access, and seen state for local copies of shared content items | Electricity | 0 | Active |
| US11249632B2 | Presence, access, and seen state for local copies of shared content items | Electricity | 0 | Active |
| US11860268B2 | Systems and methods using multiple modalities for occupancy sensing | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.