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Inventor

Didier Leonard

Inventor
Seyssinet-Pariset, FR

Overview

14→
Patents
1976–2013
Patent span
Electricity
Primary field (CPC H)

Patents· 14 as inventor

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

H03Kprimary
H03KPulse technique20%
H02HEmergency protective circuit arrangements12%
G01DMeasuring not specially adapted for a specific variable8%
G01RMeasuring electric variables8%
G01VGeophysics8%
G06KGraphical data reading8%
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 systems8%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications8%
B61LGuiding railway traffic4%
G01BMeasuring length, thickness or similar linear dimensions4%
PatentTitleYear
8,390,270'Measurement signal coupling device with electrical isolation and electrical equipment unit comprising one such device'20138,378,663'Current measurement signal device with electrical isolation, electronic trip unit, and circuit breaker comprising one such device'20138,164,874'Overvoltage protection device for an electrical circuit'20127,961,486'Capacitive power supply system'20117,791,855'Voltage surge protection device and electronic circuit comprising one such a device'20105,519,317'Inductive proximity sensor for detecting ferrous and non-ferrous objects'19965,508,662'Variable frequency inductive proximity sensor'19965,345,166'Regulated voltage two-wire detector'19945,068,592'Detector of the regulated voltage two wire type'19914,893,076'Proximity detector using inductive effect on oscillating circuit the charge of which is controlled by a pulse of short duration'19904,893,118'Device for identification by proximity'19904,879,512'Circuit for processing a pseudo-oscillatory signal, especially for inductive proximity detectors'19894,857,913'Coded objects identifiable by proximity and devices for changing the codes of these objects'19893,956,578'Facsimile system for the transmission of picture'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Based in Boulogne, FR· patent location history
1989–1990Patents assigned to FONTAINE SOC (2)· patent assignee history
1989–1994Based in Hiersac, FR· patent location history
1989–1990Based in Paris, FR· patent location history
1996Based in Moulidars, FR· patent location history
2010–2013Patents assigned to SCHNEIDER ELECTRIC IND SAS (4)· patent assignee history
2010–2013Based in Seyssinet-Pariset, FR· patent location history
2012–2013Patents assigned to LEONARD DIDIER (3)· patent assignee history
2013Patents assigned to CADOUX YVAN (2)· patent assignee history
2013Patents assigned to REYMOND BRUNO (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SCHNEIDER ELECTRIC IND SAS42010–2013
LEONARD DIDIERself32012–2013
CADOUX YVAN22013
FONTAINE SOC21989–1990
REYMOND BRUNO22013
Locations
LocationPatentsSpan
Seyssinet-Pariset, FR52010–2013
Hiersac, FR41989–1994
Moulidars, FR21996
Paris, FR21989–1990
Boulogne, FR11976