James M. Duros

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Three-phase faulted circuit indicator
- Patent number 8,319,628
- Issue date Nov 27, 2012
- Schweitzer Engineering Laboratories Inc.
- Edmund O. Schweitzer, III
- G01 - MEASURING TESTING
Information Patent Grant
Targeted timed reset fault indicator
- Patent number 6,963,197
- Issue date Nov 8, 2005
- E.O. Schweitzer Manufacturing Co., LLC
- Laurence Virgil Feight
- G01 - MEASURING TESTING
Information Patent Grant
Digitized linearizing correction apparatus with frequency modulation
- Patent number 4,045,658
- Issue date Aug 30, 1977
- Alnor Instrument Co.
- Veikko K. Peltola
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
THREE-PHASE FAULTED CIRCUIT INDICATOR
- Publication number 20090251308
- Publication date Oct 8, 2009
- Edmund O. Schweitzer, III
- G01 - MEASURING TESTING