Inventor

Georges Charpak

Inventor

Paris, FR

Overview

1981–2000

Patent span

Physics

Primary field (CPC G)

Patents· 16 as inventor

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

H01Jprimary

H01JElectric discharge tubes or discharge lamps38%

G01TMeasurement of nuclear or x-radiation31%

G01RMeasuring electric variables10%

A61BDiagnosis7%

G03CPhotosensitive materials for photographic purposes3%

G03GElectrography3%

G11BInformation storage based on relative movement between record carrier and transducer3%

H04NPictorial communication, e.g. television3%

PatentTitleYear

6,133,575'High-resolution position detector for high-flux ionizing particle streams'2000 5,959,302'High resolution radiographic imaging device'1999 5,604,783'Medical imaging devices using low-dose X or gamma ionizing radiation'1997 5,596,201'Device for forming images of ionizing particles by means of a multi-wire proportional chamber'1997 5,521,956'Medical imaging device using low-dose X- or gamma ionizing radiation'1996 5,432,355'Method for representing the spatial distribution of radioactive elements by means of a screen of the erasable phosphor type, and corresponding device'1995 5,347,131'Gas ionizing-radiation detector'1994 5,032,729'Process and device for determining the spatial distribution of electrons emerging from the surface of a radioactive body'1991 5,025,162'Method and device for determining the distribution of .beta.rays emerging from a surface'1991 4,739,349'Devices for making electric charge images visible'1988 4,673,885'Devices for reading the quantities of electrical charges borne by a dielectric'1987 4,567,530'Read-out devices of electric charge distributions on dielectric surfaces'1986 4,553,089'Devices designed to measure locally the electric charges carried by dielectrics'1985 4,376,892'Detection and imaging of the spatial distribution of visible or ultraviolet photons'1983 4,317,038'Device for determining the spatial distribution of radiation'1982 4,286,158'Neutral radiation detection and localization'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1983Patents assigned to ANVAR (3)· patent assignee history

1981–2000Based in Paris, FR· patent location history

1985–1994Patents assigned to CHARPAK GEORGES (6)· patent assignee history

1985–1988Patents assigned to LEWINER JACQUES (4)· patent assignee history

1985–1986Based in Geneve, FR· patent location history

1987Patents assigned to POLLAK ELIE (1)· patent assignee history

1991–2000Patents assigned to BIOSPACE INSTR (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CHARPAK GEORGESself	6	1985–1994
LEWINER JACQUES	4	1985–1988
ANVAR	3	1981–1983
BIOSPACE INSTR	3	1991–2000
POLLAK ELIE	1	1987

Locations

Location	Patents	Span
Paris, FR	14	1981–2000
Geneve, FR	2	1985–1986