John J. Ryeczek

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Point Marion, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Electrical cable having indicating malfunction means therein
- Patent number 6,646,206
- Issue date Nov 11, 2003
- Hazardguard, Inc.
- John J. Ryeczek
- G01 - MEASURING TESTING
Information Patent Grant
Electrical cable having indicating malfunction means therein
- Patent number 6,388,194
- Issue date May 14, 2002
- Hazardguard, Inc.
- John J. Ryeczek
- G01 - MEASURING TESTING
Information Patent Grant
Method of mining metals located in the earth
- Patent number 4,572,582
- Issue date Feb 25, 1986
- John J. Ryeczek
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Earth battery
- Patent number 4,457,988
- Issue date Jul 3, 1984
- John J. Ryeczek
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Optoelectronic sound amplifier system for musical instruments
- Patent number 4,028,977
- Issue date Jun 14, 1977
- John Joseph Ryeczek
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
Electrical cable having indicating malfunction means therein
- Publication number 20020170739
- Publication date Nov 21, 2002
- John J. Ryeczek
- G01 - MEASURING TESTING