% Expired Patents = 14.3

Forward Citations = 102

Loading Chart...

9 inventors (with patents filed for the assignee):

James A King (5 out of 10 patents)

Peter Kowalczyk (1 out of 5 patents)

Clement E Furlong (1 out of 5 patents)

4. Scott Jorgenson-Soelberg (1 out of 2 patents)

5. Noel W Kirshenbaum (1 out of 2 patents)

6. James B Clendenning (1 out of 2 patents)

7. Victor Chevillon (1 out of 2 patents)

8. Robert Millions (1 out of 1 patent)

9. Frank Chalmers (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 6875254 - Methods for detecting and extracting gold (2005-04-05),

2. 6251163 - Method for recovering gold from refractory carbonaceous ores (2001-06-26),

3. 6207443 - Method for initiating heap bioleaching of sulfidic ores (2001-03-27),

4. 6183706 - Autoclave having an agitator with an aerating impeller for high oxygen transfer rate to metal-containing slurries and method of use (2001-02-06),

5. 5895633 - Solvent extraction process for recovering copper from copper-containing (1999-04-20),

6. 5698170 - Hydrometallurgical process for copper-containing materials (1997-12-16),

7. 5504809 - Communication system for use in a mine (1996-04-02),

Company Overview

Placer Dome, Inc. is a Canadian mining company with operations in North and South America, Africa, and Australia. The company specializes in the exploration, development, and production of gold and other precious metals. Placer Dome is known for its commitment to sustainable mining practices and community engagement. With over 150 years of experience in the industry, Placer Dome continues to be a leader in responsible mining.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

7 Patents

#1 in Vancouver

#16 in unknown

Vancouver, undefined

Placer Dome, Inc.

Forward Citations = 102

9 inventors:

James A King (5 out of 10 patents)

Peter Kowalczyk (1 out of 5 patents)

Clement E Furlong (1 out of 5 patents)

4. Scott Jorgenson-Soelberg (1 out of 2 patents)

5. Noel W Kirshenbaum (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Placer Dome, Inc.. Retrieved from https://idiyas.com/company/placer-dome

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]