Inventor · disambiguated record

Marja-Riitta Hakala

Also filed as: HAKALA MARJA-RIITTA

2 granted patents·25 citations·filing 1989–2002

59Inventor score

Technology areasA01C G01N

Files withNESTE OIL OYJ1 VAISALA OX1

Top patents by PatentIndex Score

2 records

0153US4998431AField usable calibrator for humidity metersVAISALA OX·Filed 1989·Granted Mar 12, 1991·21 cites·7 claims
0241US7367158B2Fixing agent in the form of an oil/water type emulsion or suspension, and preparation of the sameNESTE OIL OYJ·Filed 2002·Granted May 6, 2008·4 cites·15 claims

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