% Expired Patents = 33.3

Forward Citations = 49

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5 inventors (with patents filed for the assignee):

Edgar R Wunsche (4 out of 5 patents)

Edgar R Wünsche (1 out of 1 patent)

Robert R Wunsche (1 out of 1 patent)

4. Milan Kosanovich (1 out of 1 patent)

5. Alan A Wunsche (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 8124004 - Slag door assembly for an electric arc furnance (2012-02-28),

2. 7767137 - Sealing apparatus for a slag door of a metallurgical furnace (2010-08-03),

3. 6696013 - Metallurgical furnace with scrap metal preheater and dispenser (2004-02-24),

4. 6024912 - Apparatus and process system for preheating of steel scrap for melting (2000-02-15),

5. 4653730 - Multi-purpose pyrometallurgical process enhancing device (1987-03-31),

6. 4455017 - Forced cooling panel for lining a metallurgical furnace (1984-06-19),

Empco (Canada) Ltd. is a leading provider of industrial equipment and supplies in Canada. With over 20 years of experience, we offer a wide range of products including tools, machinery, safety equipment, and more. Our commitment to quality and customer satisfaction sets us apart in the industry. Visit our website to learn more about our products and services.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

6 Patents

#3 in Whitby

#2,414 in Canada

Whitby, Canada

Empco (Canada) Ltd.