The Broken Hill Associated Smelters Proprietary Limited

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USPTO Granted Patents = 4

Forward Citations = 15

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5 inventors (with patents filed for the assignee):

Denby Harcourt Ward (4 out of 4 patents)

James Dixon Iley (2 out of 2 patents)

Robert George Kelly (2 out of 2 patents)

4. Frank Lawson (2 out of 5 patents)

5. Glen Waverley (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 4073481 - Continuous sulphur drossing apparatus (1978-02-14),

2. 4052200 - Process for debismuthizing lead (1977-10-04),

3. 4050926 - Continuous sulphur drossing process (1977-09-27),

4. 4042228 - Apparatus for debismuthising lead (1977-08-16),

Company Overview

The Broken Hill Associated Smelters Proprietary Limited is a leading Australian mining and metals company, specializing in zinc, lead, silver, and gold production. With over 130 years of experience in the industry, BHAS is known for its innovative technologies and sustainable approach to mining. The company operates multiple mines and smelters in Australia and internationally, contributing significantly to the global supply chain of essential metals.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

4 Patents

#63 in Melbourne

#1,031 in Australia

Melbourne, Australia