Inventor · disambiguated record
Michael Callahan
Also filed as: CALLAHAN MICHAEL · CALLAHAN MICHAEL D · CALLAHAN MICHAEL DENNIS · CALLAHAN MICHAEL V
46 granted patents·23 pending applications·1,381 citations·filing 1982–2024
98Inventor score
Top patents by PatentIndex Score
69 records- 0197US4947302AImprovements to control systems for variable parameter lighting fixturesCALLAHAN MICHAEL·Filed 1989·Granted Aug 7, 1990·232 cites·20 claims
- 0296US9759733B1Mass produced, low cost, portable test kit for the detection and identification of narcoticsCALLAHAN MICHAEL D·Filed 2016·Granted Sep 12, 2017·18 cites·45 claims
- 0396US4974286AUniversal handle for hand-held implementSMART DESIGN INC·Filed 1990·Granted Dec 4, 1990·129 cites·4 claims
- 0495US6469457B2Power and data distribution in lighting systemsFiled 2001·Granted Oct 22, 2002·134 cites·28 claims
- 0594US10330603B1Mass produced, low cost, portable test kit for the detection and identification of chemical and biological agentsCALLAHAN MICHAEL D·Filed 2017·Granted Jun 25, 2019·9 cites·32 claims
- 0694US6211627B1Lighting systemsFiled 1999·Granted Apr 3, 2001·148 cites·7 claims
- 0794US4894760AAdditive color-mixing light fixture employing a single moveable multi-filter arrayCALLAHAN MICHAEL·Filed 1988·Granted Jan 16, 1990·94 cites·3 claims
- 0893US6962417B1Keystone correction system and methodPIXELWORKS INC·Filed 2004·Granted Nov 8, 2005·28 cites·13 claims
- 0993US4697227AControl system for variable parameter fixturesCALLAHAN MICHAEL·Filed 1985·Granted Sep 29, 1987·86 cites·48 claims
- 1092USRE37190EUniversal handle for hand-held implementGEN HOUSEWARES CORP·Filed 1992·Granted May 29, 2001·78 cites·0 claims
- 1191US4527198AFollowspot parameter feedbackCALLAHAN MICHAEL·Filed 1982·Granted Jul 2, 1985·59 cites·38 claims
- 1288US10214904B2Trusses and similar structuresCALLAHAN MICHAEL·Filed 2017·Granted Feb 26, 2019·6 cites·9 claims
- 1388US8898250B2Anonymous digital identificationCALLAHAN MICHAEL·Filed 2010·Granted Nov 25, 2014·8 cites·20 claims
- 1487US9989473B2Portable liquid analyzerCALLAHAN MICHAEL·Filed 2015·Granted Jun 5, 2018·3 cites·12 claims
- 1586US4797795AControl system for variable parameter lighting fixturesCALLAHAN MICHAEL·Filed 1987·Granted Jan 10, 1989·54 cites·20 claims
- 1685US11359374B2Leg-carriage type trussesCALLAHAN MICHAEL·Filed 2021·Granted Jun 14, 2022·2 cites·15 claims
- 1784US9633372B2Anonymous digital identificationCALLAHAN MICHAEL·Filed 2016·Granted Apr 25, 2017·2 cites·20 claims
- 1883US6237193B1Compressible handleROBINSON KNIFE COMPANY·Filed 1999·Granted May 29, 2001·50 cites·20 claims
- 1981US10614413B2Inventory management system and method of useLIFE TECHNOLOGIES CORP·Filed 2015·Granted Apr 7, 2020·6 cites·19 claims
- 2081US2024425330A1Truss sections joined with two fittings fixed by a single pin having multiple diametersCALLAHAN MICHAEL·Filed 2024·Application pending·0 cites
- 2180US6976915B2Gaming device display with simulated halftonesIGT RENO NEV·Filed 2002·Granted Dec 20, 2005·91 cites·36 claims
- 2279US10493638B1Apparatus, system and method for providing a vacuum ejector for an end effectorJABIL INC·Filed 2018·Granted Dec 3, 2019·2 cites·19 claims
- 2376US10942126B2Portable liquid analyzerCALLAHAN MICHAEL D·Filed 2018·Granted Mar 9, 2021·1 cites·11 claims
- 2476US4931916AApparatus for mechanically adjusting lighting fixture beam azimuth and elevationCALLAHAN MICHAEL·Filed 1988·Granted Jun 5, 1990·35 cites·21 claims
- 2576US4460943AAzimuth and elevation control systemCALLAHAN MICHAEL·Filed 1982·Granted Jul 17, 1984·28 cites·18 claims
- 2675US12110217B2Chain motor power distribution and controlCALLAHAN MICHAEL·Filed 2022·Granted Oct 8, 2024·0 cites·2 claims
- 2775US9258133B2Anonymous digital identificationCALLAHAN MICHAEL·Filed 2014·Granted Feb 9, 2016·2 cites·23 claims
- 2873US12117163B2Lighting equipmentCALLAHAN MICHAEL·Filed 2021·Granted Oct 15, 2024·0 cites·7 claims
- 2972US10745915B2Leg carriage type trussesCALLAHAN MICHAEL·Filed 2019·Granted Aug 18, 2020·1 cites·11 claims
- 3072US9294872B2Location-specific data acquisitionCALLAHAN MICHAEL·Filed 2013·Granted Mar 22, 2016·2 cites·20 claims
- 3172US4600976AColor changer mechanismCALLAHAN MICHAEL·Filed 1985·Granted Jul 15, 1986·27 cites·9 claims
- 3269US11187398B2Portable followspot stand having an improved range of height and tilt angle adjustmentCALLAHAN MICHAEL·Filed 2020·Granted Nov 30, 2021·0 cites·3 claims
- 3369US10099387B2Apparatus, system and method for providing a vacuum ejector for an end effectorBOSBOOM JEROEN·Filed 2017·Granted Oct 16, 2018·2 cites·13 claims
- 3468US11002012B2Adaptor for racking truss leg carriagesCALLAHAN MICHAEL·Filed 2020·Granted May 11, 2021·0 cites·11 claims
- 3566US10586253B2Anonymous digital identificationCALLAHAN MICHAEL·Filed 2017·Granted Mar 10, 2020·0 cites·24 claims
- 3664US12377345B2Methods and systems for interactive gaming platform scene generation utilizing captured visual data and artificial intelligence-generated environmentCALLAHAN MICHAEL·Filed 2023·Granted Aug 5, 2025·0 cites·21 claims
- 3764US4769743AApparatus for mechanically adjusting lighting fixture azimuth and elevationCALLAHAN MICHAEL·Filed 1986·Granted Sep 6, 1988·26 cites·30 claims
- 3864US2008165538A1Lighting systems and components thereofCALLAHAN MICHAEL·Filed 2007·Application pending·0 cites
- 3963US11181252B2Apparatus for steering a light beam using two mirrors having only one mirror movedCALLAHAN MICHAEL·Filed 2019·Granted Nov 23, 2021·1 cites·2 claims
- 4062US11940387B2Portable liquid analyzerVERITEQUE USA INC·Filed 2020·Granted Mar 26, 2024·0 cites·9 claims
- 4162US11761610B2Twist-lock plug improved to positively lock with prior art receptaclesCALLAHAN MICHAEL·Filed 2021·Granted Sep 19, 2023·0 cites·1 claims
- 4262US11413520B2Method and system for a personal interaction game platformCALLAHAN MICHAEL·Filed 2020·Granted Aug 16, 2022·0 cites·20 claims
- 4362US2009319408A1Provison application system and methodCALLAHAN MICHAEL·Filed 2009·Application pending·0 cites
- 4462US2010005100A1Data management system and methodCALLAHAN MICHAEL·Filed 2009·Application pending·0 cites
- 4562US2009327350A1Interactive review system and methodCALLAHAN MICHAEL·Filed 2009·Application pending·0 cites
- 4660US11059187B2Apparatus, system and method for providing a vacuum ejector for an end effectorJABIL INC·Filed 2019·Granted Jul 13, 2021·0 cites·15 claims
- 4759US2025251347A1Portable liquid analyzerVERITEQUE USA INC·Filed 2024·Application pending·0 cites
- 4859US2017363277A1Portable apparatus for conditioning airCALLAHAN MICHAEL·Filed 2017·Application pending·0 cites
- 4959US2007193186A1Structures and components thereofCALLAHAN MICHAEL·Filed 2007·Application pending·0 cites
- 5058US11592167B1Distributable dimmer package having a six-circuit output connector and re-configurable power inputCALLAHAN MICHAEL·Filed 2016·Granted Feb 28, 2023·0 cites·6 claims
Showing the top 50 of 69 patent records by PatentIndex Score.
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