George K. Sutherland

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White Bear, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Monitoring and indicating circuit for reverse osmosis filter
- Patent number 4,937,557
- Issue date Jun 26, 1990
- Aqua-Tronics, Inc.
- Mario A. Tucci
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Water treatment regeneration system incorporating alternating curre...
- Patent number 4,847,598
- Issue date Jul 11, 1989
- Aqua-Tronics, Inc.
- Mario A. Tucci
- G08 - SIGNALLING
Information Patent Grant
Constant current closed loop controller for rotating system
- Patent number 4,540,877
- Issue date Sep 10, 1985
- Sys-Tec, Inc.
- Richard J. Zelinka
- G05 - CONTROLLING REGULATING
Information Patent Grant
Instrument zeroing circuit
- Patent number 4,374,362
- Issue date Feb 15, 1983
- Sys-Tec, Inc.
- George K. Sutherland
- G01 - MEASURING TESTING
Information Patent Grant
Regeneration detector for water softeners
- Patent number 4,320,010
- Issue date Mar 16, 1982
- Sys-Tec, Inc.
- Mario A. Tucci
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Heater control for rotary members
- Patent number 4,114,023
- Issue date Sep 12, 1978
- Sys-Tec, Inc.
- Richard J. Zelinka
- G05 - CONTROLLING REGULATING