Skip navigation links (access key: Z)Library and Archives Canada - Bibliothèque et Archives Canada Canada
Home > Politics and Government > Made in Canada Franšais

Archived Content

This archived Web page remains online for reference, research or recordkeeping purposes. This page will not be altered or updated. Web pages that are archived on the Internet are not subject to the Government of Canada Web Standards. As per the Communications Policy of the Government of Canada, you can request alternate formats of this page on the Contact Us page.

Photograph of Thomas Leopold Willson

Thomas Leopold Willson

Born 1860; died December 20, 1915, at New York City

Source

There are over 70 patents in Willson's name.

His early patents were concerned with electro dynamos and aluminium production.

Willson moved to the United States and discovered the processes to produce calcium carbide and acetylene gas in 1892.

He returned to Canada to develop carbide and hydroelectric concerns.

Willson's discoveries led to the development and growth of the electrochemical industry in North America.

Sample of inventions patented in Canada by Willson

Patent Number Filing Date Title
14180 1882 Improvements in Electric Lamps
25190 1886 Process of Treating Paper to Render it Fireproof
34059 1890 Dynamo Electric Machine
40638 1892 Methods of Melting Metals by Electricity
50989 1894 Production and Use of Hydrocarbon Gas