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For the Inventor, By the Inventor

Karlstad, Sweden

Ingenjorsfirman R. Ohrnell Ab


USPTO Granted Patents = 3

Forward Citations = 5

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3 inventors (with patents filed for the assignee):

goldMedal Magnus Gustav Tiberg (1 out of 2 patents)

silverMedal Walter Emil Heydorn (1 out of 1 patent)

bronzeMedal Kurt E Johansson (1 out of 5 patents)


3 patents:

1. 4120197 - Device for sensing exerted load on a rope, wire, or the like (1978-10-17),
2. 4058156 - Device for the removal of castings from chill moulds (1977-11-15),
3. 4057871 - Cleaning device for cavities preferably in chill moulds for steel ingots (1977-11-15),
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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#16 in Karlstad

#1,562 in Sweden

...
Karlstad, Sweden

Ingenjorsfirman R. Ohrnell Ab

Forward Citations = 5

3 inventors:

goldMedal Magnus Gustav Tiberg (1 out of 2 patents)

silverMedal Walter Emil Heydorn (1 out of 1 patent)

bronzeMedal Kurt E Johansson (1 out of 5 patents)

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