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Donald W. Wortman
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Central Islip, NY, US
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last 30 patents
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Patent Grant
Power supplies with latch-up prevention and automatic back-up
Patent number
4,600,875
Issue date
Jul 15, 1986
TII Corporation
Donald W. Wortman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Station identification circuit arrangement
Patent number
4,459,433
Issue date
Jul 10, 1984
TII Industries Inc.
Donald W. Wortman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Solid state hybrid circuits
Patent number
4,433,215
Issue date
Feb 21, 1984
TII Corporation
Donald W. Wortman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Equipment protector and energy saving apparatus
Patent number
4,415,943
Issue date
Nov 15, 1983
TII Industries, Inc.
Donald W. Wortman
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Telephone carrier system repeater and power supply
Patent number
4,392,225
Issue date
Jul 5, 1983
TII Corporation
Donald W. Wortman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transformerless hybrid circuits
Patent number
4,278,847
Issue date
Jul 14, 1981
TII Corporation
Donald W. Wortman
H04 - ELECTRIC COMMUNICATION TECHNIQUE