David L. Higgins

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Palos Verdes Estates, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Film processing apparatus for the electrolytic recovery of silver
- Patent number 4,127,465
- Issue date Nov 28, 1978
- Ag-Met, Inc.
- David L. Higgins
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Digital control of electrolytic current
- Patent number 4,078,983
- Issue date Mar 14, 1978
- Ag-Met, Inc.
- David L. Higgins
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Portable metal recovery apparatus
- Patent number 4,054,503
- Issue date Oct 18, 1977
- Ag-MET, Inc.
- David L. Higgins
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Method for the electrolytic recovery of metals
- Patent number 3,980,538
- Issue date Sep 14, 1976
- Ag-Met, Inc.
- David L. Higgins
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR