Forward Citations = 50

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4 inventors (with patents filed for the assignee):

Gunnar Hannestad (2 out of 2 patents)

Jorolf Alstad (1 out of 1 patent)

Leif Farbu (1 out of 2 patents)

4. Norvald Gjelsvik (1 out of 5 patents)

4 patents: Sort by Forward Citations

1. 4352574 - Mixer-settler apparatus (1982-10-05),

2. 4041125 - Process for separation of the lanthanides (1977-08-09),

3. 3997445 - Apparatus for liquid-liquid countercurrent extraction (1976-12-13),

4. 3997445 - Apparatus for liquid-liquid countercurrent extraction (1976-12-13),

Forskningsgruppe for Sjeldne, Jordarter is a dedicated research group focusing on rare earth elements. Our team of experts conducts in-depth studies and analysis to further understanding of these valuable minerals. We aim to contribute to the field of geology and explore potential applications for rare earth elements in various industries.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

4 Patents

#1 in Oslo

#58,999 in N

Oslo, undefined

Forskningsgruppe for Sjeldne, Jordarter

Forward Citations = 50

4 inventors:

Gunnar Hannestad (2 out of 2 patents)

Jorolf Alstad (1 out of 1 patent)

Leif Farbu (1 out of 2 patents)

4. Norvald Gjelsvik (1 out of 5 patents)

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