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For the Inventor, By the Inventor

Melbourne, Australia

The Broken Hill Proprietary Company Limited

Calculating rank
USPTO Granted Patents = 87


Forward Citations = 1,042

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121 inventors (with patents filed for the assignee):

goldMedal Michael Debenham (10 out of 10 patents)

silverMedal Peter L Revill (8 out of 8 patents)

bronzeMedal Geoffrey R Rigby (5 out of 6 patents)

4.  Kenneth G Kemlo (5 out of 5 patents)

5.  Alan George Dalli (5 out of 5 patents)

6.  Robert John Turner (4 out of 8 patents)

7.  Ralph J Tyler (4 out of 5 patents)

8.  Allan G Dalli (4 out of 4 patents)

9.  Dietmar F Salm (4 out of 4 patents)

10.  James Beresford Lee (3 out of 7 patents)

11.  Gregory John Adams (3 out of 3 patents)

12.  Graeme Joseph O'Keefe (3 out of 3 patents)

13.  Graham Clifford Goodwin (3 out of 3 patents)

14.  Gunter H Schmidt (3 out of 3 patents)

15.  James H Edwards (3 out of 4 patents)


Core Competencies:
Gravity Gradiometer
Highwall Mining
Coal Preparation
Inertization Systems
Strain-Induced Transformation
Electrophotographic Grade Zinc Oxide
Methane Sensing
Centrifugal Separation
Gas Sensors
Oxygen Enrichment
Catalyst Conversion
Steel Processing

87 patents:

1. 6575029 - Gravity gradiometer accelerometers (2003-06-10),
2. 6369573 - Apparatus for reducing rotation of a towed airborne article (2002-04-09),
3. 6027587 - Strain-induced transformation to ultrafine microstructure in steel (2000-02-22),
4. 5999557 - Steel making bath control (1999-12-07),
5. 5997100 - Inertization system for highwall mining (1999-12-07),
6. 5962782 - Gravity gradiometer accelerometers (1999-10-05),
7. 5922951 - Gravity gradiometer (1999-07-13),
8. 5830424 - Method of extracting fluorine from minerals or mineral species (1998-11-03),
9. 5820223 - Inertization system for highwall mining (1998-10-13),
10. 5775850 - Rock bolt (1998-07-07),
11. 5769259 - Full-open end panel for container closure (1998-06-23),
12. 5635834 - SQUID detector with flux feedback coil sized and located to produce (1997-06-03),
13. 5609397 - Highwall mining system with driven conveyor units (1997-03-11),
14. 5270124 - Composite roll (1993-12-14),
15. 5263113 - Method and apparatus for controlling the speed of a motor (1993-11-16),
Company Overview
The Broken Hill Proprietary Company Limited, headquartered in Melbourne, Australia, is a leading player in the mining technology sector. The company specializes in advanced mining solutions, focusing on areas such as gravity gradiometry, highwall mining, and coal preparation. Its innovative technologies also encompass inertization systems, strain-induced transformation, and methane sensing, contributing to enhanced safety and efficiency in mining operations. Additionally, BHP is involved in the production of electrophotographic grade zinc oxide and centrifugal separation technologies, reinforcing its commitment to sustainable resource extraction.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

The Broken Hill Proprietary Company Limited USPTO Patent Assignee Logo
87 Patents

#5 in Melbourne

#31 in Australia

#8,787 in the World

Melbourne, AU
Melbourne, Australia

The Broken Hill Proprietary Company Limited

Forward Citations = 1,042

121 inventors:

goldMedal Michael Debenham (10 out of 10 patents)

silverMedal Peter L Revill (8 out of 8 patents)

bronzeMedal Geoffrey R Rigby (5 out of 6 patents)

4.  Kenneth G Kemlo (5 out of 5 patents)

5.  Alan George Dalli (5 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: The Broken Hill Proprietary Company Limited. Retrieved from https://idiyas.com/company/broken-hill-proprietary-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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