Growing community of inventors

Oslo, Norway

Eva R Karal

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 = 8

Eva R KaralRolf Kvamsdal (1 patent)Eva R KaralEva R Karal (1 patent)Rolf KvamsdalRolf Kvamsdal (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kvarner Subsea Contracting A/s (1 from 1 patent)


1 patent:

1. 4753552 - Dry and/or wet one-atmosphere underwater system

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as of
12/20/2025
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