Inventor · disambiguated record
Per Ranstad
Also filed as: RANSTAD PER · RANSTAD PER ANDERS GUSTAV
9 granted patents·90 citations·filing 1994–2012
87Inventor score
Top patents by PatentIndex Score
9 records- 0190US8570776B2Method and device for determining a control scheme for an active power filterKOLAR JOHANN W·Filed 2011·Granted Oct 29, 2013·24 cites·26 claims
- 0285US9543855B2Voltage source converter (VSC) with neutral-point-clamped (NPC) topology and method for operating such voltage source converterALSTOM TECHNOLOGY LTD·Filed 2012·Granted Jan 10, 2017·9 cites·2 claims
- 0378US7701732B2Power supply for electrostatic precipitatorALSTOM TECHNOLOGY LTD·Filed 2008·Granted Apr 20, 2010·9 cites·16 claims
- 0472US5639294AMethod for controlling the power supply to an electrostatic precipitatorFLAEKT AB·Filed 1994·Granted Jun 17, 1997·32 cites·23 claims
- 0570US9132434B2Method to control the line distoration of a system of power supplies of electrostatic precipitatorsRANSTAD PER·Filed 2011·Granted Sep 15, 2015·3 cites·13 claims
- 0664US9899831B2Method and device to protect an ESP power supply from transient over-voltages on the power gridRANSTAD PER·Filed 2011·Granted Feb 20, 2018·3 cites·2 claims
- 0764US9331561B2Method to minimize input current harmonics of power systems such as ESP power systemsKOLAR JOHANN WALTER·Filed 2011·Granted May 3, 2016·4 cites·12 claims
- 0858US7649753B2Power supply for electrostatic precipitatorALSTOM TECHNOLOGY LTD·Filed 2007·Granted Jan 19, 2010·5 cites·20 claims
- 0952US9325300B2Method for the operation of electrostatic precipitatorsRANSTAD PER·Filed 2011·Granted Apr 26, 2016·1 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →