Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5571477 | Equipment for sampling and work-up for analysis of PAH and other organic compounds, and hydrogen fluoride and sulphur oxides | Kalman Nagy, Trygve Foon.ae butted.s, Herman Kolderup | 1996-11-05 |
| 5476793 | Method for deciding the reactivity and soot index of carbon products | Trygve Foosnaes, Tormod Naterstad | 1995-12-19 |
| 5366901 | Apparatus for analyzing carbon products | Trygve Foosnaes, Tormod Naterstad | 1994-11-22 |
| 4659442 | Method of reducing the loss of carbon from anodes when producing aluminum by electrolytic smelting, and an inert anode top for performing the method | Tormod Naterstad, Jan Hurlen | 1987-04-21 |