Growing community of inventors

Gagnef, Sweden

Kjell I Mases

Average Co-Inventor Count = 3.64

ph-index = 10

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 = 271

Kjell I Mases ↔ Rutger Belin (8 patents)Kjell I Mases ↔ Oskar E Juhlin (7 patents)Kjell I Mases ↔ David Crafoord (7 patents)Kjell I Mases ↔ Niklas Lilenthal (7 patents)Kjell I Mases ↔ Jonas D Fridholm (7 patents)Kjell I Mases ↔ Lennart C Fredriksson (7 patents)Kjell I Mases ↔ Hangkan Bergkvist (1 patent)Kjell I Mases ↔ Carl-Goran Crafoord (1 patent)Kjell I Mases ↔ Jorgen Eklund (1 patent)Kjell I Mases ↔ Jörgen Eklund (0 patent)Kjell I MasesKjell I Mases (10 patents)Rutger BelinRutger Belin (8 patents)Oskar E JuhlinOskar E Juhlin (85 patents)David CrafoordDavid Crafoord (23 patents)Niklas LilenthalNiklas Lilenthal (15 patents)Jonas D FridholmJonas D Fridholm (9 patents)Lennart C FredrikssonLennart C Fredriksson (7 patents)Hangkan BergkvistHangkan Bergkvist (13 patents)Carl-Goran CrafoordCarl-Goran Crafoord (5 patents)Jorgen EklundJorgen Eklund (1 patent)Jörgen EklundJörgen Eklund (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. 3m Innovative Properties Company (7 from 14,067 patents)

2. Hornell Elektrooptik Ab (2 from 2 patents)

3. Other (1 from 832,718 patents)


10 patents:

1. D539988 - Welding helmet visor

2. D533313 - Ear portion of a welding helmet

3. D532939 - Top portion of a welding helmet

4. D532560 - Side portion of a welding helmet

5. D526097 - Side portion of a welding helmet

6. D525395 - Welding helmet lens frame

7. D524992 - Pair of welding helmet visor flanges

8. 6055666 - Face shield

9. D398421 - Protective helmet

10. 5191468 - Welder's helmet

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as of
12/10/2025
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