Inventor

Walter S. Gontowski, Jr.

Inventor

Thompson, CT, US

Overview

31→

Patents

1979–2005

Patent span

Electricity

Primary field (CPC H)

Patents· 31 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H03Kprimary

H03KPulse technique23%

H03FAmplifiers13%

G05FSystems for regulating electric or magnetic variables8%

G08BSignalling systems, e.g. personal calling systems6%

H02HEmergency protective circuit arrangements6%

H02PControl or regulation of electric motors, electric generators or dynamo-electric converters6%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%

G11BInformation storage based on relative movement between record carrier and transducer4%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems4%

H10DInorganic electric semiconductor devices4%

PatentTitleYear

6,954,105'Disk drive and error amplifier therefor and related methods'2005 6,504,328'Sensorless motor driver with BEMF mask extender'2003 5,877,914'Amplifier output clamping scheme'1999 5,862,301'Motor control with clamped filter output'1999 5,192,901'Short circuit protection'1993 5,142,217'Synchronizable power supply controller and a system incorporating the same'1992 4,999,527'One-spot multivibrator'1991 4,931,750'Voltage controlled oscillator'1990 4,916,332'Timing and supply bias circuit using one capacitor'1990 4,887,022'Under voltage lockout circuit for switching mode power supply'1989 4,885,525'Voltage controllable current source'1989 4,820,935'Multiple function driver circuit'1989 4,819,122'Over-current timer modulator'1989 4,791,315'Cross-coupled latch'1988 4,740,742'Voltage regulator start-up circuit'1988 4,720,689'High frequency precision oscillator with synchronous capability'1988 4,670,721'Relaxation oscillator integrated circuit having shortable zener diodes for adjusting discharge current'1987 4,598,259'Stable frequency sawtooth oscillator'1986 4,494,088'Oscillator with capacitor charged and discharged by current proportional to a reference current'1985 4,485,301'Linear two-terminal integrated circuit photo sensor'1984 4,467,191'Photo diode with auxiliary photo diode regulator'1984 4,454,416'Photo-electric circuit employing current mirrors'1984 4,450,415'Alterable mode oscillator'1984 4,439,673'Two terminal integrated circuit light-sensor'1984 4,426,658'IC With protection against reversed power supply'1984 4,413,271'Integrated circuit including test portion and method for making'1983 4,389,638'I.C. Alarm signal generator'1983 4,348,451'Method for making custom integrated circuits and metallization artwork therefor'1982 4,247,847'Vibration-detecting intrusion alarm'1981 4,199,753'Integrated circuit for detecting changes in light intensity'1980 4,147,996'Current-controlled oscillator'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1986Patents assigned to SPRAGUE ELECTRIC CO (14)· patent assignee history

1979–2003Based in Thompson, CT, US· patent location history

1987–1993Patents assigned to CHERRY SEMICONDUCTOR CORP (11)· patent assignee history

1988Patents assigned to CHERRY SEMICONCONDUCTOR CORP (1)· patent assignee history

1992–1999Patents assigned to SGS THOMSON MICROELECTRONICS (2)· patent assignee history

1999–2005Patents assigned to ST MICROELECTRONICS INC (3)· patent assignee history

2005Based in Prescott, AZ, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SPRAGUE ELECTRIC CO	14	1979–1986
CHERRY SEMICONDUCTOR CORP	11	1987–1993
ST MICROELECTRONICS INC	3	1999–2005
SGS THOMSON MICROELECTRONICS	2	1992–1999
CHERRY SEMICONCONDUCTOR CORP	1	1988

Locations

Location	Patents	Span
Thompson, CT, US	30	1979–2003
Prescott, AZ, US	1	2005