Inventor

Michael Charles Keogh Wiltshire

Inventor

High Wycombe, GB

Overview

13→

Patents

1989–2009

Patent span

Electricity

Primary field (CPC H)

Patents· 13 as inventor

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

H01Qprimary

H01QAntennas, i.e. radio aerials33%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein28%

G01RMeasuring electric variables11%

G04GElectronic time-pieces6%

H01PWaveguides6%

H04NPictorial communication, e.g. television6%

H05KPrinted circuits6%

Y10TTechnical subjects covered by former us classification6%

PatentTitleYear

7,532,008'Material having magnetic permeability at R.F. frequency'2009 7,170,363'Guides for r.f. magnetic flux'2007 6,927,574'Magnetic resonance apparatus including an rf magnetic flux guiding structure for improving the signal-to-noise ratio'2005 6,801,173'Structure with switchable magnetic properties'2004 6,768,051'Screens for RF magnetic flux'2004 6,608,811'Structure with magnetic properties'2003 6,512,483'Antenna arrangements'2003 5,719,654'Liquid crystal fabry perot filter device having a peak operating wavelength of 10.6 microns'1998 5,479,281'Display devices'1995 5,313,562'Optical device with electrodes end-to-end with electric field causing homeotropic alignment of liquid crystal in space between ends'1994 5,039,206'Liquid crystal displays'1991 4,949,174'Zoom lens thermal imager incorporating a non-pixellated detector'1990 4,861,992'Testing of thermal imagers'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1991Patents assigned to GEN ELECTRIC CO PLC (3)· patent assignee history

1989–2009Based in High Wycombe, GB· patent location history

1994–1995Patents assigned to MARCONI GEC LTD (2)· patent assignee history

1994Based in Buckinghamshire, GB· patent location history

2003Patents assigned to MARCONI CASWELL LTD (2)· patent assignee history

2004Patents assigned to MARCONI OPTICAL COMPONENTS LTD (2)· patent assignee history

2004–2005Based in Bucks, GB· patent location history

2009Patents assigned to ERICSSON AB (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GEN ELECTRIC CO PLC	3	1989–1991
MARCONI CASWELL LTD	2	2003
MARCONI GEC LTD	2	1994–1995
MARCONI OPTICAL COMPONENTS LTD	2	2004
ERICSSON AB	1	2009

Locations

Location	Patents	Span
High Wycombe, GB	10	1989–2009
Bucks, GB	2	2004–2005
Buckinghamshire, GB	1	1994