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Aluminium Pechiney

USPTO Granted Patents = 139

% Expired Patents = 12.2

CIPO Patents = 10

EPO Patents = 4

Forward Citations = 932

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177 inventors (with patents filed for the assignee):

Michel Leroy (14 out of 19 patents)

Christian Dreyer (8 out of 8 patents)

Michel Garat (8 out of 8 patents)

4. Jean-Michel Lamerant (8 out of 11 patents)

5. Bernard Langon (8 out of 11 patents)

6. Pierre Maurel (6 out of 13 patents)

7. Gabriel Colombier (5 out of 8 patents)

8. Yves Bertaud (5 out of 7 patents)

9. Jacques Lefebvre (5 out of 9 patents)

10. Christian Barthelemy (4 out of 7 patents)

11. Eric Chantriaux (4 out of 6 patents)

12. Claude Vanvoren (4 out of 10 patents)

13. Pierre Homsi (4 out of 4 patents)

14. Armand Golay (4 out of 5 patents)

15. Pierre Personnet (4 out of 4 patents)

Core Competencies:

Aluminium Alloys

Electrolysis Cells

Bayer Process

Refractory Materials

Alumina Trihydrate

Casting Processes

Thermal Shock Treatment

Gas Dispersion

Powder Conveyance

Cathode Sputtering

Continuous Production

Metal Shaping

139 patents: Sort by Forward Citations

1. 7939182 - Filler wire for welding aluminum alloys (2011-05-10),

2. 7807119 - Bayer process for production of alumina trihydrate, the said improvement relating to separation of aluminate liquor and insoluble residues (2010-10-05),

3. 7704471 - Bayer process for production of alumina trihydrate by alkaline digestion of bauxite, the process comprising a predesilication step (2010-04-27),

4. 7544275 - Device and method for connecting inert anodes for the production of aluminum by fused-salt electrolysis (2009-06-09),

5. 7513979 - Series of electrolysis cells for the production of aluminium comprising means for equilibration of the magnetic fields at the ends of the lines (2009-04-07),

6. 7485215 - Method of pre-heating a stack for aluminium electrolysis production (2009-02-03),

7. 7429314 - Device for controlling the travel distance of a chisel in a feeding system for an aluminium production electrolytic cell (2008-09-30),

8. 7258155 - Ingot mould for quenching metals and ingots thus obtained (2007-08-21),

9. 7256232 - Coating precursor and method for coating a substrate with a refractory layer (2007-08-14),

10. 7238390 - Coating precursor and method for coating a substrate with a refractory layer (2007-07-03),

11. 7217408 - Solubilisation of carbonates by recycling condensates during digestion of monohydrate bauxites under pressure (2007-05-15),

12. 7192271 - Method and cooling device for the subracks in a chamber furnace (2007-03-20),

13. 7125539 - Ground calcined alumina for input in a precursor composition for refractory material and method for obtaining same (2006-10-24),

14. 7048475 - System for distribution of pulverulent material with controlled gravimetric flow rates (2006-05-23),

15. 6983060 - Method to measure degree and homogeneity of alumina calcination (2006-01-03),

Company Overview

Aluminium Pechiney, headquartered in Paris, France, is a prominent player in the aluminium production industry. The company specializes in the development and manufacturing of advanced aluminium alloys and innovative electrolysis cells, which are essential for efficient aluminium extraction and processing. Its expertise extends to the Bayer process for alumina production, refractory materials, and alumina trihydrate. Additionally, Aluminium Pechiney focuses on casting processes and thermal shock treatment, enhancing the performance and durability of aluminium products.

Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

139 Patents

#56 in Paris

#205 in France

#5,829 in the World

Aluminium Pechiney

Forward Citations = 932

177 inventors:

Michel Leroy (14 out of 19 patents)

Christian Dreyer (8 out of 8 patents)

Michel Garat (8 out of 8 patents)

4. Jean-Michel Lamerant (8 out of 11 patents)

5. Bernard Langon (8 out of 11 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Aluminium Pechiney. Retrieved from https://idiyas.com/company/aluminium-pechiney

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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