Inventor · disambiguated record
Olof Hjortstam
Also filed as: HJORTSTAM OLOF
11 granted patents·4 pending applications·7 citations·filing 2001–2022
81Inventor score
Files withERIKSSON JAN-ERIK3HITACHI ENERGY SWITZERLAND AG3HITACHI ENERGY LTD2ABB POWER GRIDS SWITZERLAND AG1ABB RESEARCH LTD1
Top patents by PatentIndex Score
15 records- 0178US8876934B2Apparatus and method for electromagnetic stirring in an electrical arc furnaceERIKSSON JAN-ERIK·Filed 2013·Granted Nov 4, 2014·3 cites·12 claims
- 0274US8721789B2Apparatus and method for crystallization of siliconERIKSSON JAN-ERIK·Filed 2012·Granted May 13, 2014·1 cites·25 claims
- 0373US9045810B2Method for melting steelBEL FDHILA REBEI·Filed 2014·Granted Jun 2, 2015·3 cites·13 claims
- 0461US12020859B2High-voltage column current transformerHITACHI ENERGY LTD·Filed 2022·Granted Jun 25, 2024·0 cites·19 claims
- 0558US8632632B2Apparatus and method for crystallization of siliconERIKSSON JAN-ERIK·Filed 2012·Granted Jan 21, 2014·0 cites·9 claims
- 0657US11923108B2Insulator shed having non-circular tipHITACHI ENERGY LTD·Filed 2020·Granted Mar 5, 2024·0 cites·20 claims
- 0752US11769608B2MFC in pressboards for HV devicesHITACHI ENERGY SWITZERLAND AG·Filed 2021·Granted Sep 26, 2023·0 cites·19 claims
- 0851US11798711B2Insulator with resistivity gradientHITACHI ENERGY SWITZERLAND AG·Filed 2019·Granted Oct 24, 2023·0 cites·12 claims
- 0951US11037697B2Silicone rubber with ATH fillerABB POWER GRIDS SWITZERLAND AG·Filed 2018·Granted Jun 15, 2021·0 cites·16 claims
- 1050US11715588B2Insulator having internal cooling channelsHITACHI ENERGY SWITZERLAND AG·Filed 2021·Granted Aug 1, 2023·0 cites·20 claims
- 1140US2008179077A1High-voltage bushingABB RESEARCH LTD·Filed 2007·Application pending·0 cites
- 1238US2002183207A1Conducting materialFiled 2001·Application pending·0 cites
- 1336US2002186113A1Induction windingFiled 2001·Application pending·0 cites
- 1436US2004020681A1Power cableFiled 2001·Application pending·0 cites
- 1534US8178780B2Electric insulation material, an electric device comprising the insulation material and a transformerHJORTSTAM OLOF·Filed 2010·Granted May 15, 2012·0 cites·8 claims
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