PatentBrief

Inventor

M Hall Charles

Patents indexed

1

Year range

1889

Associated with

Years active

1889

Total patents

1

Most recent

1889

Domains

mechanicalenergymaterials

Activity by decade

1880s
1

Patents

1

Career timeline

1 patents, in 1889

Dot size = forward citations

18891890

Hover or tap any dot to see the patent. Larger dots indicate more forward citations — a proxy for downstream influence.

US 400664·1889·Individual

How Charles Hall Invented Modern Aluminum Production

This 1889 patent describes the Hall-Héroult process, which uses electricity to extract pure aluminum from its ore, making the metal affordable for everyone.

Patent monitoring

Get a weekly digest when new patents naming M Hall Charles are indexed.

Get alerts →