# Lewis Latimer

*Carbon filament engineer whose practical improvements made electric light usable at scale.*

> Black's Encyclopedia — the sourced record of Black American life.
> Portal: Science & Invention · Status: In review · Revised: July 24, 2026 · Revisions: 1
> Canonical: https://www.blacksencyclopedia.com/record/lewis-latimer-3f06

## Questions this record answers

- Did Lewis Latimer invent the light bulb?
- What did Lewis Latimer actually do for electric lighting?
- Why is Lewis Latimer’s role in the light bulb story often reduced or misstated?
- Who made the carbon filament that made electric light practical?

## Summary

Lewis Latimer did not invent the electric light bulb, but he helped make electric lighting practical by improving the carbon filament. His work belongs at the center of the lighting story because the usable lamp depends not only on invention, but on the engineering that makes invention endure.

## The archive's standing

Lewis Latimer stands as one of the essential Black engineers of the industrial age. The archive holds him as an author of practical modern electricity, not a footnote to it. His significance lies in the transformation of a fragile idea into a system people could actually use.

## What he built

Latimer’s most important technical contribution was his work on carbon filaments for incandescent lamps, part of the broader engineering effort that made electric light durable and commercially useful.

## Why the record is often minimized

Popular retellings often collapse the history of the light bulb into a single inventor, usually Edison, and then leave Latimer as an assistant. That version erases the engineering labor that turned laboratory novelty into public utility.

## How the archive holds the claim

Latimer’s own patent work and published technical writing place him inside the core development of electric lighting. The archival record supports a precise claim: he improved the filament and helped make the lamp practical; it does not support the inflated claim that he invented the bulb itself.

## Why this subject belongs in the archive

Latimer’s life shows how Black technical authorship was routinely absorbed into larger corporate and national legends. The record must name the maker, the material improvement, and the system that later redistributed credit.

## Sources

1. Lewis Howard Latimer, U.S. Patent No. 247,097, Electric lamp, issued September 13, 1881.
2. Lewis Howard Latimer, Incandescent Electric Lighting: A Practical Description of the Edison System, D. Van Nostrand Company, 1890.
3. The New York Public Library, Schomburg Center for Research in Black Culture, Lewis Howard Latimer papers and related materials.
4. R. B. Gould, A Romance of the Electric Light, D. Appleton and Company, 1901.

## Related records

- https://www.blacksencyclopedia.com/record/electric-light-bulb
- https://www.blacksencyclopedia.com/record/carbon-filament-lamp
- https://www.blacksencyclopedia.com/record/thomas-edison
- https://www.blacksencyclopedia.com/record/incandescent-lighting

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Cite as: Black's Encyclopedia, "Lewis Latimer," revised July 24, 2026. https://www.blacksencyclopedia.com/record/lewis-latimer-3f06

Text under the Black's Record License: cite the record, keep attribution attached, cite the revision date.