Showing 1–24 of 24 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Per H. Hystad | Karmøy Winch As | 10 |
| 2 | Leiv A. Folkedal | Norsk Hydro Asa | 3 |
| 3 | Karl Einar Ferkingstad | Aker Well Service As | 2 |
| 3 | Ole Terje Midling | The Welding Institute | 2 |
| 3 | Geir Hystad | Karmøy Winch As | 2 |
| 3 | Ann Hystad | — | 2 |
| 3 | Serina Hystad | Karmøy Winch As | 2 |
| 3 | Morgan Haringstad | Unknown | 2 |
| #9 | by Anne Elise Hystad, legal representative | — | 1 |
| #9 | Anne Elise Hystad | — | 1 |
| #9 | Harald Hystad, deceased | — | 1 |
| #9 | Jens C. Lindaas | Stolt Offshore | 1 |
| #9 | Leif Folkedal | Norsk Hydro | 1 |
| #9 | Jens Sandahl S.o slashed.rensen | Norsk Hydro Asa | 1 |
| #9 | Magne Hystad | Karmøy Winch As | 1 |
| #9 | Jacob Lillesund | Den Norske Stats Oljeselskap A.S. | 1 |
| #9 | Arild Storesund | Norsk Hydro Asa | 1 |
| #9 | Per Lyngstad | — | 1 |
| #9 | Alf Kenneth Braathen | — | 1 |
| #9 | Antonie Oosterkamp | — | 1 |
| #9 | Sverre Slevolden | Norsk Hydro Asa | 1 |
| #9 | Paul K. Bardsen | — | 1 |
| #9 | Endre Haraldseide | — | 1 |
| #9 | Kjetil Rovik | — | 1 |