Plunkett; Allan B.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Plunkett; Allan B..The latest application filed is for "back emf sampling circuit for phase locked loop motor control".

Company Profile

0.13.0

Plunkett; Allan B. - Portland OR
Plunkett; Allan B. - Scotia NY
Plunkett; Allan B. - Lawrence Park 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
Back EMF sampling circuit for phase locked loop motor control Grant 4,928,043 - Plunkett May 22, 1	1990-05-22
Field orientation control of a permanent magnet motor Grant 4,814,677 - Plunkett March 21, 1	1989-03-21
Regenerative unipolar converter for switched reluctance motors using one main switching device per phase Grant 4,684,867 - Miller , et al. August 4, 1	1987-08-04
Synchronous disk motor with amorphous metal stator and permanent magnet rotor and flywheel Grant 4,578,610 - Kliman , et al. March 25, 1	1986-03-25
Pulse width modulated inverter machine drive Grant 4,377,779 - Plunkett March 22, 1	1983-03-22
Apparatus for controlling a PWM inverter-permanent magnet synchronous motor drive Grant 4,361,791 - Plunkett November 30, 1	1982-11-30
Transistorized current controlled pulse width modulated inverter machine drive system Grant 4,320,331 - Plunkett March 16, 1	1982-03-16
Apparatus for maintaining synchronism of an inverter-synchronous machine drive system at light or zero machine loads Grant 4,258,302 - Plunkett March 24, 1	1981-03-24
Method and apparatus for generating an air gap flux signal for an AC machine from AC line voltage and current values Grant 4,245,181 - Plunkett January 13, 1	1981-01-13
Excitation commanding for current fed motor drives Grant 4,215,305 - D'Atre , et al. July 29, 1	1980-07-29
Stabilizing scheme for an a-c electric motor drive system Grant 4,088,935 - D'Atre , et al. May 9, 1	1978-05-09
Means for stabilizing an a-c electric motor drive system Grant 4,088,934 - D'Atre , et al. May 9, 1	1978-05-09
Braking effort control Grant 3,899,725 - Plunkett August 12, 1	1975-08-12

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.