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Elkem As

USPTO Granted Patents = 86

CIPO Patents = 5

EPO Patents = 12

Trademarks = 38

Forward Citations = 481

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95 inventors (with patents filed for the assignee):

Harald Krogsrud (10 out of 18 patents)

Knut K Evensen (7 out of 7 patents)

Jan A Aune (6 out of 13 patents)

4. Karl Forwald (5 out of 7 patents)

5. Gunnar Schussler (4 out of 5 patents)

6. Johannes Sandvik (4 out of 4 patents)

7. Harry Morten Rong (3 out of 4 patents)

8. Mohamed Al-Bagoury (3 out of 5 patents)

9. Bjorn Myhre (3 out of 3 patents)

10. Kenneth Friestad (3 out of 5 patents)

11. Kai Johansen (3 out of 7 patents)

12. Eike Herfurth (3 out of 3 patents)

13. Oyvind Sorli (3 out of 3 patents)

14. Torbjorn Roe (2 out of 3 patents)

15. Magne Dastol (2 out of 9 patents)

Core Competencies:

Silicon Dioxide Production

Aluminium Oxide Production

Trichlorosilane Production

Titanium-Silicon Alloys

Oil Well Cement Composition

Calcium Aluminate Cement

Engineering Plastics

Amorphous Silica Slurry

Electrolytic Metal Refining

Carbothermic Aluminum Production

Silicon Feedstock for Solar Cells

Ceramic Composite Materials

86 patents: Sort by Forward Citations

1. 10011496 - Process for the production of silicon dioxide particles (2018-07-03),

2. 9738540 - Process for the production of aluminium oxide particles (2017-08-22),

3. 9388481 - High strength, oxidation and wear resistant titanium-silicon based alloy (2016-07-12),

4. 9388051 - Method for production of trichlorosilane and silicon for use in the production of trichlorosilane (2016-07-12),

5. 8962537 - Oil well drilling fluids, oil well cement composition and slurry of weighting material (2015-02-24),

6. 8876968 - Cement composition based on calcium aluminate cement (2014-11-04),

7. 8729172 - High performance engineering plastics and additive for use in engineering plastics (2014-05-20),

8. 8668772 - Slurry of manganomanganic oxide particles and method for the production of slurry (2014-03-11),

9. 8585819 - Aqueous slurry of amorphous silica and method for its production (2013-11-19),

10. 8053507 - Highly filled elastomeric resin compositions with added microsilica for processability (2011-11-08),

11. 7931883 - Silicon feedstock for solar cells (2011-04-26),

12. 7901561 - Method for electrolytic production and refining of metals (2011-03-08),

13. 7854783 - Carbothermic aluminum production apparatus, systems and methods (2010-12-21),

14. 7819937 - Use of alumina-carbon agglomerates in the carbothermic production of aluminum (2010-10-26),

15. 7753988 - Use of alumina-carbon agglomerates in the carbothermic production of aluminum (2010-07-13),

Elkem is one of the world's leading suppliers of advanced silicon, silicones, ferrosilicon alloys and carbon materials. Elkem's more than 6,500 employees are based in 31 countries, and the company serves customers all over the world. Elkem strives to create added value through collaborative partnerships, long-term customer relationships, and a strong focus on sustainability and responsible business practices.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

86 Patents

#7 in Oslo

#16 in Norway

#8,623 in the World

Elkem As

Forward Citations = 481

95 inventors:

Harald Krogsrud (10 out of 18 patents)

Knut K Evensen (7 out of 7 patents)

Jan A Aune (6 out of 13 patents)

4. Karl Forwald (5 out of 7 patents)

5. Gunnar Schussler (4 out of 5 patents)

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