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Inventor

Trevor J. Holroyd

Inventor
Derby, GB

Overview

15→
Patents
1986–2019
Patent span
Physics
Primary field (CPC G)

Patents· 15 as inventor

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

G01Hprimary
G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves22%
G01NInvestigating or analysing materials by determining their chemical or physical properties20%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure10%
G01DMeasuring not specially adapted for a specific variable7%
F02PIgnition, other than compression ignition, for internal-combustion engines5%
G01MTesting static or dynamic balance of machines or structures5%
G06FElectric digital data processing5%
Y02TClimate change mitigation technologies related to transportation5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for2%
PatentTitleYear
10,216,691Sensor based means of monitoring the mechanical condition of rotating machinery that operates intermittently20199,020,778'Sensor based means of monitoring the mechanical condition of rotating machinery that operates intermittently'20155,473,315'Enhanced means of processing signals used to interpret the condition of machinery'19955,452,264'Resonant acoustic emission transducer'19955,261,505'Collision detector for a vehicle'19935,176,032'Method and apparatus for processing electrical signals and a stress wave sensor'19935,115,778'Apparatus for controlling an internal combustion engine'19925,016,480'Stress wave load cell'19915,015,995'Fluid level monitor'19915,014,547'Apparatus for determining the surface roughness of a material'19915,005,415'Method and apparatus for detecting variations in a process by processing emitted acoustic signals'19915,004,985'Method and apparatus for testing the response of a stress wave sensor'19914,819,994'Anti lock braking system for vehicle'19894,688,429'Determination of the spectral content of transient stress wave events'19874,584,879'Component inspection by self generated transient stress wave detection'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–1989Patents assigned to ROLLS ROYCE (2)· patent assignee history
1986–1989Based in Mickleover, GB· patent location history
1987–1993Based in Derby, GB· patent location history
1991–1993Patents assigned to STRESSWAVE TECH (7)· patent assignee history
1995Patents assigned to HOLROYD INSTR LTD (2)· patent assignee history
1995Based in Matlock, GB· patent location history
2015–2019Patents assigned to KITTIWAKE HOLROYD LTD (2)· patent assignee history
2015Patents assigned to HOLROYD TREVOR JAMES (1)· patent assignee history
2015Based in Storrington, GB· patent location history
2019Based in West Sussex, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
STRESSWAVE TECH71991–1993
HOLROYD INSTR LTD21995
KITTIWAKE HOLROYD LTD22015–2019
ROLLS ROYCE21986–1989
HOLROYD TREVOR JAMESself12015
Locations
LocationPatentsSpan
Derby, GB91987–1993
Matlock, GB21995
Mickleover, GB21986–1989
West Sussex, GB12019
Storrington, GB12015