Inventor

Malcolm Paul Varnham

Inventor

Alresford, GB

Overview

32→

Patents

1990–2021

Patent span

Physics

Primary field (CPC G)

Patents· 32 as inventor

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

H01Sprimary

H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light15%

G01CMeasuring distances, levels or bearings14%

G02BOptical elements, systems or apparatus14%

E21BEarth or rock drilling12%

G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves10%

G01DMeasuring not specially adapted for a specific variable7%

G01PMeasuring linear or angular speed, acceleration, deceleration, or shock5%

G01BMeasuring length, thickness or similar linear dimensions3%

G01RMeasuring electric variables3%

G01VGeophysics3%

PatentTitleYear

11,050,209Apparatus and method for optical isolation2021 8,605,762'Laser apparatus'2013 8,520,306'Apparatus for combining laser radiation'2013 7,592,568'Apparatus for the industrial processing of a material by optical radiation'2009 7,508,574'Apparatus for providing optical radiation'2009 7,502,391'Eye safe high power fibre laser'2009 7,421,175'Apparatus for providing optical radiation'2008 7,321,710'Apparatus for providing optical radiation'2008 7,120,339'Polarization-dependent optical fibre amplifier'2006 6,817,257'Apparatus for the remote measurement of physical parameters'2004 6,766,703'Apparatus and method for enhancing remote sensor performance and utility'2004 6,532,839'Apparatus for the remote measurement of physical parameters'2003 6,363,034'Methods and apparatus for phase angle demodulation'2002 6,307,809'Geophone with optical fiber pressure sensor'2001 RE037283'Apparatus for the remote measurement of physical parameters'2001 6,211,964'Method and structure for incorporating fiber optic acoustic sensors in a seismic array'2001 6,195,162'Seismic sensor with interferometric sensing apparatus'2001 6,160,762'Optical sensor'2000 6,006,828'Apparatus for the remote deployment of valves'1999 5,992,250'Apparatus for the remote measurement of physical parameters'1999 5,991,026'Apparatus for multiplexing fibre-optic sensing interferometers'1999 5,872,876'Optical fibre sensor element'1999 5,629,472'Method of minimizing bias and achieving mode alignment by trimming a vibrating rate sensor'1997 5,570,437'Apparatus for the remote measurement of physical parameters'1996 5,540,094'Scale factor compensation for piezo-electric rate sensors'1996 5,445,007'Method of balancing a vibrating rate sensor by removing a portion of the vibrating cylinder'1995 5,419,194'Single axis rate sensor noise reduction'1995 5,226,321'Vibrating planar gyro'1993 5,218,867'Single axis attitude sensor'1993 5,131,749'Reduction of demodulator offset errors in fibre-optic gyroscopes'1992 5,022,754'Determining the wavelength of optical radiation'1991 4,949,038'Optical fiber having a helical core for sensing a magnetic field'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1997Patents assigned to BRITISH AEROSPACE (8)· patent assignee history

1991–1993Based in Stevenage, GB· patent location history

1993–1996Based in Herts, GB· patent location history

1995–1997Based in Plymouth, GB· patent location history

1996–2004Patents assigned to SENSOR DYNAMICS LTD (7)· patent assignee history

1996–2021Based in Alresford, GB· patent location history

1999–2002Patents assigned to GEOSENSOR CORP (6)· patent assignee history

1999–2004Based in Hampshire, GB· patent location history

2006–2021Patents assigned to SPI LASERS UK LTD (7)· patent assignee history

2008–2013Patents assigned to VARNHAM MALCOLM PAUL (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BRITISH AEROSPACE	8	1991–1997
SENSOR DYNAMICS LTD	7	1996–2004
SPI LASERS UK LTD	7	2006–2021
GEOSENSOR CORP	6	1999–2002
VARNHAM MALCOLM PAULself	3	2008–2013

Locations

Location	Patents	Span
Alresford, GB	19	1996–2021
Hampshire, GB	4	1999–2004
Plymouth, GB	3	1995–1997
Stevenage, GB	3	1991–1993
Herts, GB	2	1993–1996