Inventor

David R. McMurtry

Inventor

Wotton-under-Edge, GB

Overview

1978–2021

Patent span

Physics

Primary field (CPC G)

Patents· 195 as inventor

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

G01Bprimary

G01BMeasuring length, thickness or similar linear dimensions36%

B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling12%

Y10TTechnical subjects covered by former us classification12%

G05BControl or regulating systems in general6%

G01DMeasuring not specially adapted for a specific variable5%

F16CShafts4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

B25JManipulators2%

B23BTurning2%

A61CDentistry1%

PatentTitleYear

11,123,924Powder bed fusion apparatus and methods2021 11,123,799Additive manufacturing apparatus and method2021 10,982,334Substrate treatment device and method and encoder scale treated by this method2021 10,816,335Coordinate positioning machine2020 10,399,145Additive manufacturing apparatus and method2019 10,252,333Additive manufacturing apparatus and method2019 10,086,187Drug delivery apparatus2018 9,726,481'Method of analogue measurement scanning on a machine tool'2017 9,471,054'Analogue measurement probe for a machine tool apparatus'2016 9,377,284'Metrology apparatus'2016 9,236,712'Frequency tuneable laser device'2016 9,052,177'Metrology apparatus'2015 9,038,282'Interchangeable task module counterweight'2015 8,939,008'Calibration artefact for calibrating an articulating probe head'2015 8,875,603'Method of machine tool calibration'2014 8,672,575'Pivot joint'2014 8,510,929'Indexer'2013 8,425,119'Gas bearings'2013 8,368,887'Rotation detection kit'2013 8,250,952'Method of machine tool calibration'2012 8,254,022'Sample positioning stage and method of operation'2012 RE043250'Articulating device'2012 8,074,369'Pivot joint'2011 8,001,859'Method of error compensation in a coordinate measuring machine'2011 7,841,097'Metrology apparatus'2010 7,810,248'Coordinate positioning machine'2010 7,723,639'Substrate treatment device and method and encoder scale treated by this method'2010 7,659,992'Scale reading apparatus'2010 7,603,789'Measurement probe'2009 7,594,337'Power and/or signal paths for a machine tool accessory'2009 7,568,373'Method of error compensation in a coordinate measuring machine'2009 7,568,854'Pivot joint'2009 7,543,393'Method of calibrating a scanning system'2009 7,533,574'Method of error compensation'2009 7,506,455'Metrology instruments'2009 7,463,996'Method and apparatus for scanning'2008 RE040578'Apparatus for changing operating modules on a coordinate positioning machine'2008 7,456,538'Reaction balanced rotary drive mechanism'2008 7,409,914'Aligning components of a measuring system'2008 7,367,128'Scale reading apparatus'2008 7,350,310'Articulating device'2008 7,346,993'Rotary scale'2008 7,337,685'Adjustable device'2008 7,318,284'Method of calibrating a scanning system'2008 7,315,018'Machine tool analysis device and method'2008 7,293,365'Probe or stylus orientation'2007 7,281,336'Touch probe'2007 7,254,506'Method of calibrating a scanning system'2007 7,241,070'Pivot joint'2007 7,228,641'Bearing arrangement'2007 7,185,552'Movable sample holder'2007 7,174,652'Performing measurement or calibration on positioning machines'2007 7,168,290'Aligning components of a measuring system'2007 7,165,335'Method of scanning an object'2007 7,146,741'Measuring probe with diaphragms and modules'2006 7,127,825'Stylus orientation'2006 7,124,514'Probe for high speed scanning'2006 7,100,297'Probe or stylus orientation'2006 7,055,258'Kinematic coupling with damper'2006 7,024,783'Apparatus for changing operating modules on a coordinate positioning machine'2006 7,023,550'Aligning optical components of an optical measuring system'2006 6,918,188'Performing measurement or calibration on positioning machines'2005 6,860,637'Bearing arrangement'2005 6,772,531'Measurement apparatus including a track for a measurement scale and apparatus for tensioning the scale'2004 6,701,634'Measurement apparatus including a track for a measurement scale and apparatus for tensioning the scale'2004 6,681,703'Tiltable table'2004 6,662,461'Performing measurement or calibration on positioning machines'2003 6,633,143'Reactionless rotary drive mechanism'2003 6,601,311'Method of calibrating a scanning system'2003 6,519,863'Probe arm for machine tool'2003 6,496,273'Position determining apparatus for coordinate positioning machine'2002 6,434,846'Method of calibrating a scanning system'2002 6,430,833'Measuring probe with diaphragms and modules'2002 6,397,485'Counterbalanced coordinate positioning machine'2002 6,336,375'Coordinate positioning machine'2002 6,226,884'Method for performing measurements on positioning machines using triangularly arrayed support structures and pre-calibrated extendible measuring bars'2001 6,209,411'Rotary bearing and drive mechanisms'2001 RE037030'Touch probe and signal processing circuit therefor'2001 6,145,405'Coordinate positioning machine'2000 6,047,612'Rotary bearing and drive mechanisms'2000 6,012,230'Inspection system for coordinate positioning machine'2000 5,934,056'Mower grass collecting and distributing'1999 5,918,378'Inspection system for coordinate positioning machine'1999 5,813,287'Coordinate positioning machine'1998 5,755,038'Touch probe'1998 5,735,180'Indexing mechanism'1998 5,697,620'Seal assembly having first and second seals acting in series'1997 5,681,981'Performing measurement or calibration on positioning machines'1997 5,669,152'Touch probe'1997 5,665,896'Calibration of an articulating probe head for a coordinate positioning machine'1997 5,647,137'Probe arm for machine tool'1997 RE035510'Probe head with indexing mechanism'1997 5,604,593'Interferometer position measurement system with extensible legs'1997 5,583,443'Calibration of capacitance probe'1996 5,517,308'Interferometric measuring apparatus employing fixed non-zero path length difference'1996 5,505,005'Touch probe'1996 5,491,904'Touch probe'1996 5,478,300'Automated artefact handling system for machine tools'1995 5,446,970'Probe arm for machine tool'1995 5,435,072'Touch probe and signal processing circuit therefor'1995 5,404,649'Touch probe'1995 5,402,981'Workpiece measuring machine'1995 5,390,424'Analogue probe'1995 5,374,125'Bearings'1994 5,353,514'Touch probe'1994 5,345,690'Contact probes'1994 5,345,689'Measuring probe'1994 5,339,535'Touch probe'1994 5,334,918'Method of controlling a coordinate positioning machine for measurement of a workpiece'1994 5,327,657'Touch probe'1994 5,323,540'Touch probe'1994 5,270,664'Probe for measuring surface roughness by sensing fringe field capacitance effects'1993 5,257,460'Machine tool measurement methods'1993 5,253,428'Touch probe'1993 5,228,352'Signal processing circuit for trigger probe'1993 5,214,857'Calibration device'1993 5,212,857'Modular multi-fixturing system for a machine tool'1993 5,212,873'Position-sensing probe'1993 5,212,872'Touch probe'1993 5,212,646'Method of using a mounting for surface-sensing stylus'1993 5,208,994'Stylus counterbalancing mechanism for a measuring probe'1993 5,201,621'Shank for a tool'1993 5,189,806'Method of and apparatus for scanning the surface of a workpiece'1993 5,185,936'Probe head with indexing mechanism'1993 5,152,072'Surface-sensing device'1992 5,146,691'Touch probe'1992 5,101,548'Apparatus for changing a sensing device'1992 5,088,046'Mounting for surface-sensing stylus and a method of using said mounting'1992 5,084,981'Probe head'1992 5,074,052'Contact-sensing probe'1991 5,063,685'Tape scale applicator'1991 5,064,290'Opto-electronic scale-reading apparatus wherein phase-separated secondary orders of diffraction are generated'1991 5,048,194'Position sensing probe'1991 5,040,931'Coupling mechanism'1991 5,040,306'Surface-sensing device'1991 5,029,399'Probe for use with measuring apparatus'1991 5,026,163'Straightness interferometer system'1991 5,016,199'Co-ordinate measuring'1991 5,004,982'Scales for position determining apparatus having marks of different amplitudes thereon'1991 4,991,304'Workpiece inspection method'1991 4,979,284'Apparatus for changing a sensing device'1990 4,975,571'Opto-electronic scale-reading apparatus'1990 4,950,079'Combined scale and interferometer'1990 4,947,538'Machine tool'1990 4,933,868'Rotary cutting tool'1990 4,932,131'Position determination apparatus'1990 4,926,566'Method of producing a metrological scale and scale produced by such method'1990 4,910,446'Coordinate positioning apparatus'1990 4,901,256'Co-ordinate measuring'1990 4,892,407'Optical measuring apparatus for use on machines'1990 4,879,817'Checking the setting of a tool'1989 4,854,050'Contact-sensing probe'1989 4,819,491'Position-determining apparatus'1989 4,780,963'Probe for sensing contact via acceleration'1988 4,777,818'Coordinate positioning apparatus'1988 4,750,835'Method of and device for measuring dimensions'1988 4,706,371'Machine tool'1987 4,702,013'Probe for sensing contact via acceleration'1987 4,689,485'Optoelectronic displacement measuring apparatus using color-encoded light'1987 4,663,823'Machine tool'1987 4,651,405'Tool change apparatus'1987 4,646,422'Machine tool'1987 4,636,960'Method of operating a machine tool with a sensing probe in order to gather positional data for the calculation of tool offset parameters'1987 4,599,524'Position-sensing apparatus'1986 4,571,847'Method and apparatus for use in co-ordinate measuring machines'1986 4,561,058'Method of and apparatus for measuring distance in numerically controlled machine tools'1985 4,542,467'Method of operating a machine tool with a sensing probe in order to gather positional data for the calculation of tool offset parameters'1985 4,536,661'Position-sensing apparatus'1985 4,523,383'Position sensing apparatus'1985 4,513,646'Numerically controlled machine tool'1985 4,473,955'Probe for use in measuring apparatus'1984 4,462,162'Probe for measuring workpieces'1984 4,451,988'Probe for use in measuring apparatus'1984 4,451,892'Method of and apparatus for measuring distances in numerically controlled machine tools'1984 4,443,946'Probe for measuring workpieces'1984 4,397,093'Probe for use in measuring apparatus'1983 4,384,332'Numerically controlled machine tool'1983 4,375,723'Contact-sensing probe'1983 4,360,973'Probe for use in measuring apparatus'1982 4,349,946'Tool connecting mechanism'1982 4,333,238'Coordinate measuring machine'1982 4,313,263'Method and apparatus for use in co-ordinate measuring machines'1982 4,301,338'Contact-sensing probe'1981 4,288,925'Probe for use in measuring apparatus'1981 4,270,275'Probes'1981 4,209,206'Rotary mounting for use especially with measuring apparatus'1980 4,168,576'Method and apparatus for use in co-ordinate measuring machines'1979 4,158,919'Apparatus for measuring displacement in at least two orthogonal dimensions'1979 4,155,171'Contact-sensing probe'1979 4,153,998'Probes'1979 4,138,823'Probe for use in measuring apparatus'1979 4,118,997'Bevel gearing'1978 4,084,323'Measuring apparatus'1978 4,078,314'Measuring apparatus'1978 4,069,663'Thrust reverser for by-pass gas turbine engine'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1986Patents assigned to ROLLS ROYCE (17)· patent assignee history

1978–2007Based in Wotton-under-Edge, GB· patent location history

1978–1981Based in Bristol, GB· patent location history

1979–1988Patents assigned to RENISHAW ELECTRICAL LTD (14)· patent assignee history

1979–2021Based in Gloucestershire, GB· patent location history

1984–2021Patents assigned to RENISHAW PLC (142)· patent assignee history

1993–1997Patents assigned to RENISHAW METROLOGY LTD (15)· patent assignee history

2003–2016Based in Dursley, GB· patent location history

2006–2021Based in Stancombe, GB· patent location history

2011–2021Patents assigned to MCMURTRY DAVID ROBERTS (13)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RENISHAW PLC	142	1984–2021
ROLLS ROYCE	17	1978–1986
RENISHAW METROLOGY LTD	15	1993–1997
RENISHAW ELECTRICAL LTD	14	1979–1988
MCMURTRY DAVID ROBERTSself	13	2011–2021

Locations

Location	Patents	Span
Wotton-under-Edge, GB	119	1978–2007
Dursley, GB	40	2003–2016
Gloucestershire, GB	23	1979–2021
Stancombe, GB	10	2006–2021
Bristol, GB	3	1978–1981