Inventor

John Bartko

Inventor

Monroeville, PA, US

Overview

19→

Patents

1976–1996

Patent span

Electricity

Primary field (CPC H)

Patents· 19 as inventor

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

H10Pprimary

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1024%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests21%

H10DInorganic electric semiconductor devices13%

G01NInvestigating or analysing materials by determining their chemical or physical properties11%

G01TMeasurement of nuclear or x-radiation8%

G21CNuclear reactors5%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution5%

B29CShaping or joining of plastics3%

G01VGeophysics3%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices3%

PatentTitleYear

5,539,788'Prompt gamma neutron activation analysis system'1996 5,414,195'System and method for on-line monitoring and control of heavy metal contamination in soil washing process'1995 5,250,388'Production of highly conductive polymers for electronic circuits'1993 5,133,901'System and method for on-line monitoring and control of heavy metal contamination in soil washing process'1992 5,038,042'High resolution scintillation counters'1991 4,881,247'Measuring nuclear fuel burnup'1989 4,857,259'Neutron dosimeter'1989 4,804,514'Method and apparatus for neutron dosimetry'1989 4,357,417'High resolution lithography using protons or alpha particles'1982 4,318,750'Method for radiation hardening semiconductor devices and integrated circuits to latch-up effects'1982 4,311,534'Reducing the reverse recovery charge of thyristors by nuclear irradiation'1982 4,278,476'Method of making ion implanted reverse-conducting thyristor'1981 4,278,475'Forming of contoured irradiated regions in materials such as semiconductor bodies by nuclear radiation'1981 4,240,844'Reducing the switching time of semiconductor devices by neutron irradiation'1980 4,076,555'Irradiation for rapid turn-off reverse blocking diode thyristor'1978 4,075,037'Tailoring of recovery charge in power diodes and thyristors by irradiation'1978 4,056,408'Reducing the switching time of semiconductor devices by nuclear irradiation'1977 4,043,755'Method and apparatus for determining uranium concentration in a moving stream'1977 3,933,527'Fine tuning power diodes with irradiation'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1996Patents assigned to WESTINGHOUSE ELECTRIC CORP (19)· patent assignee history

1976–1978Based in Pittsburgh, PA, US· patent location history

1977–1993Based in Monroeville, PA, US· patent location history

1992–1996Based in State College, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
WESTINGHOUSE ELECTRIC CORP	19	1976–1996

Locations

Location	Patents	Span
Monroeville, Pennsylvania, US	13	1977–1993
State College, Pennsylvania, US	3	1992–1996
Pittsburgh, Pennsylvania, US	3	1976–1978