Growing community of inventors

V.ang.rg.ang.rda, Sweden

Sigvard Johansson

Average Co-Inventor Count = 2.00

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 = 56

Sigvard JohanssonLennart Haglund (2 patents)Sigvard JohanssonSigvard Johansson (2 patents)Lennart HaglundLennart Haglund (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ab Stil-industri (2 from 5 patents)


2 patents:

1. 4569535 - Device in locks for vehicle safety belts

2. 4454634 - Safety belt buckle

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idiyas.com
as of
12/20/2025
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