Inventor · disambiguated record
Yrjö Leppänen
Also filed as: LEPPAENEN YRJOE · LEPPAENEN YRJOE T J
5 granted patents·64 citations·filing 1981–2007
79Inventor score
Top patents by PatentIndex Score
5 records- 0186US4431501AApparatus for electrolytic polishingOUTOKUMPU OY·Filed 1981·Granted Feb 14, 1984·42 cites·3 claims
- 0269US8377513B2Method for coating a cooling elementOUTOTEC OYJ·Filed 2007·Granted Feb 19, 2013·1 cites·15 claims
- 0365US6773658B1Casting mould for manufacturing a cooling element and cooling element in said mouldOUTOKUMPU OY·Filed 2000·Granted Aug 10, 2004·7 cites·7 claims
- 0465US6742699B2Method for manufacturing a cooling element and a cooling elementOUTOKUMPU OY·Filed 2001·Granted Jun 1, 2004·5 cites·10 claims
- 0561US4911225AMould for billetsOUTOKUMPU OY·Filed 1988·Granted Mar 27, 1990·9 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →