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Norskhydro Asa

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USPTO Granted Patents = 172

% Expired Patents = 30.8

CIPO Patents = 36

EPO Patents = 90

Trademarks = 13

Forward Citations = 1,641

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318 inventors (with patents filed for the assignee):

Stein Julsrud (11 out of 11 patents)

Per Eivind Gramme (11 out of 12 patents)

Oddvin Reiso (9 out of 9 patents)

4. Ulf Tundal (7 out of 9 patents)

5. Idar Kjetil Steen (7 out of 10 patents)

6. Gunnar Hannibal Lie (7 out of 7 patents)

7. Arild Håkonsen (6 out of 6 patents)

8. Ole-Jacob Siljan (5 out of 5 patents)

9. Svein Erling Johnstad (5 out of 7 patents)

10. Knut Ingvar &angst;sen (5 out of 5 patents)

11. Freddy Johnsen (5 out of 6 patents)

12. John Erik Hafsås (4 out of 4 patents)

13. Steinar Pedersen (4 out of 9 patents)

14. Finn Myhren (4 out of 20 patents)

15. Harald Breivik (4 out of 19 patents)

Core Competencies:

Electrolysis Cells

Casting Methods

Aluminum Alloys

Heat Treatment

Fluid Separation

Thermal Processing

Continuous Casting

Anode Design

Hydrocarbon Prospecting

Gas Storage

Multi-Phase Fluids

Temperature Control

172 patents: Sort by Forward Citations

1. 12043880 - Method for producing thermally processed material (2024-07-23),

2. 11746432 - Method and means for application of anode covering material (ACM) in an electrolysis cell of Hall-Heroult type for aluminium production (2023-09-05),

3. 11654478 - Casting equipment (2023-05-23),

4. 11624102 - Method and device for producing feedstock in piece form from metal (2023-04-11),

5. 11542576 - Aluminium extrusion alloy suitable for etched and anodized components (2023-01-03),

6. 11466377 - Method for providing a cathode lining barrier layer in an electrolysis cell and a material for same (2022-10-11),

7. 11453938 - Method for and equipment for suppressing discoloration of Al—Mg products (2022-09-27),

8. 11376655 - Casting apparatus and casting method (2022-07-05),

9. 11376654 - Casting method and casting apparatus for DC casting (2022-07-05),

10. 11313019 - Method for producing a heat treatable aluminum alloy with improved mechanical properties (2022-04-26),

11. 11255712 - Determining a presence or absence of water in a DC casting starter block : method and direct chill apparatus claims (2022-02-22),

12. 11123792 - Apparatus and method for applying ceramic foam filters for the removal of unwanted inclusions from metal melts (2021-09-21),

13. 11023837 - Method for the optimisation of product properties and production costs of industrial processes (2021-06-01),

14. 10994328 - Method for casting (2021-05-04),

15. 10989580 - Apparatus and method for feeding doses of fluidisable materials (2021-04-27),

Company Overview

Norsk Hydro ASA is a leading global supplier of aluminum solutions, headquartered in Oslo, Norway. The company specializes in the production and development of aluminum products, leveraging advanced technologies in electrolysis cells, casting methods, and aluminum alloys. Norsk Hydro is committed to sustainability and innovation, focusing on processes such as heat treatment, fluid separation, and thermal processing. Its expertise extends to continuous casting and anode design, positioning the company as a key player in the aluminum industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

172 Patents

#3 in Oslo

#6 in Norway

#4,825 in the World

Norskhydro Asa

Forward Citations = 1,641

318 inventors:

Stein Julsrud (11 out of 11 patents)

Per Eivind Gramme (11 out of 12 patents)

Oddvin Reiso (9 out of 9 patents)

4. Ulf Tundal (7 out of 9 patents)

5. Idar Kjetil Steen (7 out of 10 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Norskhydro Asa. Retrieved from https://idiyas.com/company/norskhydro-asa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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