Hecla Mining Company

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Organization

Wallace, ID, US

Ticker Symbols

NYSE:HL

NYSE:HL^B

MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS)
Business Address
6500 N MINERAL DRIVE SUITE 200 NONE COEUR D'ALENE ID 83815-9408 2087694100
Mailing Address
6500 N MINERAL DRIVE SUITE 200 NONE COEUR D'ALENE ID 83815-9408
State Location
ID
State of Incorporation
DE

Organizations

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Patents Grantslast 30 patents

Information Patent Grant
Systems and methods of underhand closed bench mining
- Patent number 11,788,411
- Issue date Oct 17, 2023
- Hecla Mining Company
- Mark Board
- E21 - EARTH DRILLING MINING
Information Patent Grant
Narrow opening mechanical miner
- Patent number 4,818,025
- Issue date Apr 4, 1989
- Hecla Mining Company
- Mandius C. Lundal
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of producing metallic lead and silver from their sulfides
- Patent number 3,961,941
- Issue date Jun 8, 1976
- Hecla Mining Company
- Richard D. Baker
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

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Patents Applicationslast 30 patents

Information Patent Application
SYSTEMS AND METHODS OF UNDERHAND CLOSED BENCH MINING
- Publication number 20230126105
- Publication date Apr 27, 2023
- Hecla Mining Company
- Mark Board
- E21 - EARTH DRILLING MINING

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Trademarklast 30 trademarks

Information Trademark
87923619 - HECLA MINING COMPANY
- Serial number 87923619
- Registration number 5712614
- Filing date May 16, 2018
- Hecla Mining Company
- 37 - Building construction
Information Trademark
87923627 - HECLA
- Serial number 87923627
- Registration number 5712616
- Filing date May 16, 2018
- Hecla Mining Company
- 37 - Building construction