Rosa; John

Patent Applications and Registrations

Patent applications and USPTO patent grants for Rosa; John.The latest application filed is for "harmonic neutralization of static inverters by successive stagger".

Company Profile

0.21.0

Rosa; John - Penn Hills PA
Rosa; John - Penn Hills Twp. Allegheny County
Rosa; John - Houston TX
Rosa; John - Pittsburgh PA
Rosa; John - Penn Mills PA
Rosa; John - Penn Hills Township PA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Harmonic neutralization of static inverters by successive stagger Grant 5,337,227 - Stacey , et al. August 9, 1	1994-08-09
Uninterruptible power supply system and load transfer static switch for such a system Grant 5,210,685 - Rosa May 11, 1	1993-05-11
24-pulse hexagon-type AC/DC static converter Grant 5,068,774 - Rosa November 26, 1	1991-11-26
Clapping noisemaker Grant D318,695 - Rosa July 30, 1	1991-07-30
AC/DC or DC/AC converter system with outboard commutation inductors Grant 4,683,527 - Rosa July 28, 1	1987-07-28
High frequency inverter circuit for melting and induction heating Grant 4,638,138 - Rosa , et al. January 20, 1	1987-01-20
Control system for machine commutated inverter-synchronous motor drives Grant 4,460,861 - Rosa July 17, 1	1984-07-17
AC/DC or DC/AC Converter system with improved AC-line harmonic reduction Grant 4,366,532 - Rosa , et al. December 28, 1	1982-12-28
Thyristor-controlled AC/DC converter system Grant 4,358,818 - Rosa November 9, 1	1982-11-09
Gating circuit for high voltage thyristor strings Grant 4,274,135 - Rosa , et al. June 16, 1	1981-06-16
Transformer-rectifier apparatus Grant 4,255,784 - Rosa March 10, 1	1981-03-10
Static current limiting switch with soft forced commutation Grant 4,174,495 - Rosa November 13, 1	1979-11-13
Static reactive power generating apparatus Grant 4,001,670 - Gyugyi , et al. January 4, 1	1977-01-04
Variable speed drive for induction motor Grant 3,991,354 - Rosa , et al. November 9, 1	1976-11-09
Apparatus and method for reducing effective inductance in a dynamic braking circuit Grant 3,991,352 - Fry , et al. November 9, 1	1976-11-09
Static surge-current limiter Grant 3,921,038 - Kernick , et al. November 18, 1	1975-11-18
Commutatorless Dc Motor Drive Arrangement Grant 3,840,799 - Macko , et al. October 8, 1	1974-10-08
Inverter Apparatus And Method For High Frequency Fluorescent Lamp Operation Grant 3,707,648 - Rosa December 26, 1	1972-12-26
Apparatus For Harmonic Neutralization Of Inverters Grant 3,628,123 - Rosa , et al. December 14, 1	1971-12-14
Novel Integral Firing Angle Control For Converters Grant 3,585,485 - Gyugyi , et al. June 15, 1	1971-06-15
Selective Phase Angle Pulse-generating Circuit Grant 3,558,915 - Wood , et al. January 26, 1	1971-01-26

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