Growing community of inventors

Stenungsund, Sweden

Birgit T Karlsson

Average Co-Inventor Count = 2.40

ph-index = 2

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 = 34

Birgit T KarlssonKarl M Hellsten (2 patents)Birgit T KarlssonInger G Johansson (1 patent)Birgit T KarlssonBirgit T Karlsson (2 patents)Karl M HellstenKarl M Hellsten (18 patents)Inger G JohanssonInger G Johansson (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Berol Kemi Ab (2 from 48 patents)


2 patents:

1. 4384965 - Method for the mechanical working of metals and lubricant concentrate

2. 4315755 - Hydrocarbon oils containing 1 to 10 percent emulsified water and

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1/14/2026
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