Growing community of inventors

Angered, Sweden

Jan Roger Amberntsson

Average Co-Inventor Count = 3.00

ph-index = 3

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 = 105

Jan Roger AmberntssonStig Bertil Sultan (3 patents)Jan Roger AmberntssonRoger Ingemar Andersson (2 patents)Jan Roger AmberntssonRober Ingemar Andersson (1 patent)Jan Roger AmberntssonJan Roger Amberntsson (3 patents)Stig Bertil SultanStig Bertil Sultan (6 patents)Roger Ingemar AnderssonRoger Ingemar Andersson (3 patents)Rober Ingemar AnderssonRober Ingemar Andersson (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Facit Aktiebolag (2 from 29 patents)

2. Aktiebolaget Electrolux (1 from 668 patents)


3 patents:

1. 4095237 - Ink jet printing head

2. 4005440 - Printing head for ink jet printer

3. 3953862 - Printing head device for an ink jet printer

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as of
12/18/2025
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