PATENTIT - PATENTS

          

1.                 J.Lehto, J.K.Miettinen and O.J.Heinonen, Procedure for Ceramizing Radioactive Wastes, United States Patent No. 4,632,778 (1986).

2.                 J.Lehto, J.K.Miettinen and O.J.Heinonen, Procedure for Ceramizing Radioactive Wastes, USSR Patent No. 1279541 (1986).

3.                 J.Lehto, J.K.Miettinen and O.J.Heinonen, Menetelmä radioaktii­visten jätteiden keramisoimiseksi (in Finnish), Suomen patentti No. 71625 (1987).

4.                 J.Lehto, J.K.Miettinen and O.J.Heinonen, Procedure for Ceramizing Radioactive Wastes, European Patent No. 0 108 759 (1987).

5.                 J.Lehto, R.Harjula, S.Haukka and R.Kattainen, Ioninvaihdin, menetelmä sen valmistamiseksi sekä sen käyttö (in Finnish), Suomen Patentti No. 87998 (1993).

6.                 J.Lehto, H.Leinonen and R.Harjula, Granular Titanate Ion Exchangers and Method for Preparation thereof, PCT International Application WO 97/23290, 1997.

7.                 R.Harjula and J.Lehto, Method for Cesium Removal from Radioactive Waste Liquids and Method for Producing Hexacyanoferrates, European Patent No. 0909447 (2002).

8.                 J.Lehto, H.Leinonen and R.Harjula, Preparation of Granular Titanate Ion Exchangers, United States Patent No. 6,106,799, 2000.

9.                 R.Harjula and J.Lehto, Method for Cesium Removal from Radioactive Waste Liquids, United States Patent No. 6,214,234, 2001.

10.             R.Harjula and J.Lehto, Method for Cesium Removal from Radioactive Waste Liquids and Method for Producing Hexacyanoferrates, Japanese Patent 4168172, 2008.