Inventor · disambiguated record
Charles F. Blair
Also filed as: BLAIR CHARLES F · BLAIR CHARLES FREDERICK
7 granted patents·1 pending application·184 citations·filing 2001–2017
81Inventor score
Top patents by PatentIndex Score
8 records- 0192US6700351B2Modular uninterruptible power supply battery managementLIEBERT CORP·Filed 2001·Granted Mar 2, 2004·145 cites·8 claims
- 0277US7453235B2Modular uninterruptible power supplyLIEBERT CORP·Filed 2004·Granted Nov 18, 2008·38 cites·14 claims
- 0363US10439431B2Method to reduce inrush currents in a transformer-less rectifier uninterruptible power supply systemLIEBERT CORP·Filed 2017·Granted Oct 8, 2019·1 cites·3 claims
- 0441US10404094B2System and method for power sharing in a multiple UPS systemLIEBERT CORP·Filed 2016·Granted Sep 3, 2019·0 cites·5 claims
- 0541US10340733B23-wire transformer-free UPS system and method of control to reduce common mode currentLIEBERT CORP·Filed 2015·Granted Jul 2, 2019·0 cites·3 claims
- 0638US9915687B2Real current meterLIEBERT CORP·Filed 2016·Granted Mar 13, 2018·0 cites·6 claims
- 0730US2016094209A1Method and circuit for eliminating transformer saturation in the presence of dc offset voltageLIEBERT CORP·Filed 2015·Application pending·0 cites
- 0826US10523031B2Method and device for controlling two-wire discharge circuit of batteryVERTIV CORP·Filed 2016·Granted Dec 31, 2019·0 cites·13 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →