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Rautaruukki Oy

USPTO Granted Patents = 15

EPO Patents = 1

Forward Citations = 80

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34 inventors (with patents filed for the assignee):

Timo H Piironen (3 out of 7 patents)

Heimo Keranen (2 out of 11 patents)

Timo Sarkkinen (2 out of 5 patents)

4. Pekka Brostrom (2 out of 2 patents)

5. Aki Kauhanen (1 out of 2 patents)

6. Pentti Moilanen (1 out of 3 patents)

7. Pertti Alapuranen (1 out of 2 patents)

8. Matti Koskinen (1 out of 1 patent)

9. Teuvo Lehtoluoma (1 out of 1 patent)

10. Matti Maenpaa (1 out of 1 patent)

11. Kauko Henttinen (1 out of 1 patent)

12. Aimo Saren (1 out of 1 patent)

13. Seppo Pirinen (1 out of 1 patent)

14. Pertti Jokipalo (1 out of 1 patent)

15. Jaakko Heikkinen (1 out of 1 patent)

15 patents: Sort by Forward Citations

1. 5934848 - Machining of the sealing surface of the door frame in a coke oven (1999-08-10),

2. 5609785 - Method and apparatus for improving the performance of a heating furnace (1997-03-11),

3. 5586418 - Composite construction of reinforced concrete (1996-12-24),

4. 5570185 - Method for positioning a measuring device emitting and receiving optical (1996-10-29),

5. 5485412 - Method and apparatus for successive horizontal and vertical data (1996-01-16),

6. 5473438 - Spectroscopic method and apparatus for measuring optical radiation (1995-12-05),

7. 5436984 - Minimum delay dilation/erosion filter (1995-07-25),

8. 5383101 - Device for generating radiation (1995-01-17),

9. 5263094 - Method of and an equipment for optical inspection of strip and sheet (1993-11-16),

10. 5173028 - Semitrailer (1992-12-22),

11. 5123358 - Bogie construction of a railway car (1992-06-23),

12. 5018867 - Method and apparatus for the inspection of specularly reflective surfaces (1991-05-28),

13. 5009096 - Method and apparatus for the replacing of working rolls in a rolling mill (1991-04-23),

14. 4943193 - Loading trailer (1990-07-24),

15. 4579498 - Stacking apparatus for forming a stack of a predetermined shape from (1986-04-01),

Rautaruukki Oy, now known as SSAB, is a Nordic and US-based steel company. It is one of the largest steel producers in the world, specializing in high-strength steel, quenched and tempered steels, and wear-resistant steels. SSAB serves customers in the construction, automotive, and engineering industries, offering a variety of products and services to meet their specific needs.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

15 Patents

#5 in Oulu

#210 in Finland

#38,696 in the World

Rautaruukki Oy

Forward Citations = 80

34 inventors:

Timo H Piironen (3 out of 7 patents)

Heimo Keranen (2 out of 11 patents)

Timo Sarkkinen (2 out of 5 patents)

4. Pekka Brostrom (2 out of 2 patents)

5. Aki Kauhanen (1 out of 2 patents)

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