Inventor · disambiguated record
Otto Kristian Sonju
Also filed as: SONJU OTTO · SONJU OTTO K · SONJU OTTO KRISTIAN
5 granted patents·1 pending application·109 citations·filing 1986–2013
79Inventor score
Top patents by PatentIndex Score
6 records- 0186US6461147B1Gas BurnerLEIV EIRIKSSON NYFOTEK AS·Filed 1999·Granted Oct 8, 2002·83 cites·4 claims
- 0279US4752218ACeramic composite material and a lining for metallurgical smelting furnaces wherein a ceramic composite material is usedELKEM AS·Filed 1986·Granted Jun 21, 1988·16 cites·5 claims
- 0355US8292615B2Single stage gaseous fuel burner with low NOx emissionsSPANGELO OEYSTEIN·Filed 2007·Granted Oct 23, 2012·6 cites·18 claims
- 0454US9732981B2Method and equipment for heat recoveryNORSK HYDRO AS·Filed 2013·Granted Aug 15, 2017·0 cites·8 claims
- 0536US2008099185A1Method and Equipment for Heat RecoveryNAESS ERLING·Filed 2005·Application pending·0 cites
- 0629US4846680ACeramic composite material and a lining for metallurgical smelting furnaces wherein a ceramic composite material is usedELKEM AS·Filed 1988·Granted Jul 11, 1989·4 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →