Growing community of inventors

Oslo, Norway

Halldor Opedal

Average Co-Inventor Count = 2.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 2

Halldor Opedal ↔ Leif Kopperstad (1 patent)Halldor OpedalHalldor Opedal (1 patent)Leif KopperstadLeif Kopperstad (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Elkem-spigerverket A/s (1 from 31 patents)


1 patent:

1. 4081178 - Apparatus for collection of tapping gases from electric smelting furnaces

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as of
12/12/2025
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