Thomas Tarka

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Step-leaching process of rare earth elements from ash materials usi...
- Patent number 12,221,672
- Issue date Feb 11, 2025
- United States Department of Energy
- Mengling Stuckman
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Organic acid solution having at least one ionic salt and at least o...
- Patent number 11,814,700
- Issue date Nov 14, 2023
- United States Department of Energy
- Circe Verba
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Process for Extraction of Recoverable Rare Earth Elements (REE) Usi...
- Publication number 20230042346
- Publication date Feb 9, 2023
- UNITED STATES DEPARTMENT OF ENERGY
- Circe Verba
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Process for Extraction of Recoverable Rare Earth Elements (REE) Usi...
- Publication number 20220074019
- Publication date Mar 10, 2022
- UNITED STATES DEPARTMENT OF ENERGY
- Circe Verba
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Step-Leaching Process of Rare Earth Elements from Ash Materials Usi...
- Publication number 20220017992
- Publication date Jan 20, 2022
- UNITED STATES DEPARTMENT OF ENERGY
- Mengling Stuckman
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...