Growing community of inventors

Gamle Fredrikstad, Norway

Ulf Tolfsen

Average Co-Inventor Count = 1.43

ph-index = 6

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 = 262

Ulf TolfsenJohan Horsrud (2 patents)Ulf TolfsenJan Gisle Berger (1 patent)Ulf TolfsenRoar Abrahamsen (1 patent)Ulf TolfsenRoy Kristiansen (1 patent)Ulf TolfsenMagnus Dahlen (1 patent)Ulf TolfsenPer Gyllenspetz (1 patent)Ulf TolfsenTerje Johansen (1 patent)Ulf TolfsenUlf Tolfsen (10 patents)Johan HorsrudJohan Horsrud (3 patents)Jan Gisle BergerJan Gisle Berger (3 patents)Roar AbrahamsenRoar Abrahamsen (2 patents)Roy KristiansenRoy Kristiansen (2 patents)Magnus DahlenMagnus Dahlen (1 patent)Per GyllenspetzPer Gyllenspetz (1 patent)Terje JohansenTerje Johansen (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Access As (2 from 2 patents)

2. Norcool A.s. (2 from 2 patents)

3. Autoliv Development Ab (1 from 1,123 patents)

4. Volvo Lastvagnar Ab (1 from 513 patents)

5. Link Treasure Limited (1 from 145 patents)

6. Volvo Personvagnar Ab (1 from 47 patents)

7. Crescendo As (1 from 2 patents)

8. Acess As (1 from 1 patent)

9. Access Vital As (0 patent)


10 patents:

1. 7676854 - Helmet, helmet liner and method for manufacturing the same

2. 7182179 - Walker with adjustable handlebar

3. D531937 - Mobility vehicle

4. D519423 - Walker

5. D503909 - Walker

6. 6802537 - Arrangement and method for height adjustment of the upper attachment point of a safety belt

7. 6260920 - Device for releasable attachments of objects to a mobile unit

8. 6073785 - Container dispensing apparatus

9. 6032475 - Refrigeration apparatus

10. 5555609 - Safety belt buckle

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1/2/2026
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