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Inventor

Terence J. Knowles

Inventor
Barrington, IL, US

Overview

29→
Patents
1987–2020
Patent span
Physics
Primary field (CPC G)

Patents· 29 as inventor

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

G06Fprimary
G06FElectric digital data processing33%
H03KPulse technique19%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests15%
G01FMeasuring volume, volume flow, mass flow or liquid level13%
H01HElectric switches8%
A61BDiagnosis2%
B64DEquipment for fitting in or to aircraft2%
E05YIndexing scheme associated with subclasses e05d and e05f, relating to construction elements, electric control, power supply, power signal or transmission, user interfaces, mounting or coupling, details, accessories, auxiliary operations not otherwise provided for, application thereof2%
G01NInvestigating or analysing materials by determining their chemical or physical properties2%
G01RMeasuring electric variables2%
PatentTitleYear
10,551,238Ultrasonic level sensor for aerated fluids20209,880,044'Acoustic array sensor'20189,658,719'Touch screen with acoustic mode reflective and conversion arrays'20179,285,261'Acoustic flexural order level sensor'20169,121,746'Liquid level sensor with improved temperature range'20158,919,193'Ultrasonic liquid level detector'20148,180,582'System and method for sensing liquid levels'20127,812,269'Acoustic wave touch detection circuit and method'20107,511,704'Acoustic wave touch bar system and method of use'20097,463,249'Acoustic wave touch actuated switch with feedback'20087,307,627'Individual acoustic wave switch'20077,265,746'Acoustic wave touch detection circuit and method'20077,106,310'Acoustic wave touch actuated switch'20067,053,529'Torsional acoustic wave sensor'20067,026,943'Acoustic wave ice and water detector'20066,933,932'Acoustic wave sensor with EMAT drive'20056,313,829'Edge treatment method for ultrasonic wave absorption'20016,087,599'Touch panels having plastic substrates'20005,648,643'Acoustic wave touch panel with inlayed, etched arrays and method of making the panel'19975,573,077'Acoustic touch position sensor'19965,451,723'Acoustic wave touch panel for use with a non-active stylus'19955,380,959'Controller for an acoustic touch panel'19955,329,070'Touch panel for an acoustic touch position sensor'19945,260,521'Acoustic touch position sensor using shear wave propagation'19935,243,148'Touch panel for an acoustic touch position sensor using shear wave propagation'19935,177,327'Acoustic touch position sensor using shear wave propagation'19935,162,618'Acoustic touch position sensor with first order lamb wave reflective arrays'19925,072,427'Acoustic touch position sensor with shear to lamb wave conversion'19914,710,707'High voltage electronic component test apparatus'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Based in Lincolnshire, IL, US· patent location history
1991–1993Patents assigned to EXZEC INC (5)· patent assignee history
1991–1997Based in Hanover Park, IL, US· patent location history
1996Based in Evanston, IL, US· patent location history
2000–2018Based in Barrington, IL, US· patent location history
2005–2006Patents assigned to TEXZEC INC (4)· patent assignee history
2007–2020Patents assigned to ILLINOIS TOOL WORKS (8)· patent assignee history
2012–2020Patents assigned to KNOWLES TERENCE J (4)· patent assignee history
2014–2018Patents assigned to STREET SMART SENSORS LLC (4)· patent assignee history
2020Based in Glenview, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ILLINOIS TOOL WORKS82007–2020
EXZEC INC51991–1993
KNOWLES TERENCE Jself42012–2020
STREET SMART SENSORS LLC42014–2018
TEXZEC INC42005–2006
Locations
LocationPatentsSpan
Barrington, Illinois, US172000–2018
Hanover Park, Illinois, US91991–1997
Glenview, Illinois, US12020
Evanston, Illinois, US11996
Lincolnshire, Illinois, US11987