Inventor · disambiguated record
Robert Marshall Campbell
Also filed as: CAMPBELL JR ROBERT M · CAMPBELL ROBERT · CAMPBELL ROBERT M · CAMPBELL ROBERT MARSHALL
53 granted patents·20 pending applications·1,680 citations·filing 1989–2025
98Inventor score
Files withCAMPBELL ROBERT MARSHALL28CAMPBELL ROBERT7HOOKSHOTTACTICAL LLC5CAMPBELL ROBERT M4DOW CHEMICAL CO4
Top patents by PatentIndex Score
73 records- 0198US5632744ASegmental rib carriage instrumentation and associated methodsFiled 1993·Granted May 27, 1997·164 cites·5 claims
- 0298US5261908AExpandable vertical prosthetic ribCAMPBELL ROBERT M JR·Filed 1990·Granted Nov 16, 1993·325 cites·6 claims
- 0398US5092889AExpandable vertical prosthetic ribCAMPBELL ROBERT M JR·Filed 1989·Granted Mar 3, 1992·210 cites·34 claims
- 0494US12263922B2Equipment, systems and vessels, for the effective cleanup and recovery of a broad range of floating contaminantsCAMPBELL ROBERT MARSHALL·Filed 2022·Granted Apr 1, 2025·2 cites·13 claims
- 0594US11092409B1Sighting system for a firearmCAMPBELL ROBERT MARSHALL·Filed 2019·Granted Aug 17, 2021·6 cites·21 claims
- 0693US12435480B2Equipment, systems and vessels, for the effective cleanup and recovery of a broad range of floating contaminantsCAMPBELL ROBERT MARSHALL·Filed 2023·Granted Oct 7, 2025·2 cites·19 claims
- 0793US12078451B2Firearm sighting device and systemCAMPBELL ROBERT MARSHALL·Filed 2022·Granted Sep 3, 2024·2 cites·20 claims
- 0893US11215426B1Sight adjustable display mount for firearmsCAMPBELL ROBERT MARSHALL·Filed 2020·Granted Jan 4, 2022·8 cites·17 claims
- 0993US11204219B2Camera sight device for a weaponHOOKSHOTTACTICAL LLC·Filed 2020·Granted Dec 21, 2021·3 cites·20 claims
- 1093US6350922B1Process for making 2,3-dihalopropanolsDOW CHEMICAL CO·Filed 1999·Granted Feb 26, 2002·59 cites·27 claims
- 1191US10006742B1Sight adjustable rotating smart phone mount for firearmsCAMPBELL ROBERT MARSHALL·Filed 2017·Granted Jun 26, 2018·16 cites·20 claims
- 1290US10808370B1Oil spill clean-up and recovery systems for marine vesselsCAMPBELL ROBERT MARSHALL·Filed 2017·Granted Oct 20, 2020·4 cites·20 claims
- 1390US10591249B2Camera sight device for a weaponHOOKSHOTTACTICAL LLC·Filed 2016·Granted Mar 17, 2020·13 cites·20 claims
- 1488US5030235AProsthetic first ribCAMPBELL ROBERT M JR·Filed 1990·Granted Jul 9, 1991·302 cites·1 claims
- 1587US12259216B2Camera sight device for a weaponHOOKSHOTTACTICAL LLC·Filed 2021·Granted Mar 25, 2025·1 cites·20 claims
- 1685US11796286B2Firearm sighting device and systemCAMPBELL ROBERT MARSHALL·Filed 2022·Granted Oct 24, 2023·2 cites·20 claims
- 1784US10359256B2Camara sight with smart phone mountCAMPBELL ROBERT MARSHALL·Filed 2018·Granted Jul 23, 2019·2 cites·1 claims
- 1882US7906690B2Batch, semi-continuous or continuous hydrochlorination of glycerin with reduced volatile chlorinated hydrocarbon by-products and chloracetone levelsDOW GLOBAL TECHNOLOGIES INC·Filed 2007·Granted Mar 15, 2011·3 cites·57 claims
- 1981US10876816B2Camera sight devices and rear viewing camera smart phone mount for a firearmCAMPBELL ROBERT MARSHALL·Filed 2018·Granted Dec 29, 2020·8 cites·18 claims
- 2080US12504257B2Sighting system for a firearmCAMPBELL ROBERT MARSHALL·Filed 2024·Granted Dec 23, 2025·0 cites·20 claims
- 2180US12428795B1Oil spill clean-up and recovery systems for marine vesselsCAMPBELL ROBERT MARSHALL·Filed 2022·Granted Sep 30, 2025·0 cites·18 claims
- 2280US2025271239A1Camera sight device for a weaponHOOKSHOTTACTICAL LLC·Filed 2025·Application pending·0 cites
- 2379US5620414AApparatus and method for effecting surgical incision through use of a fluid jetFiled 1994·Granted Apr 15, 1997·239 cites·8 claims
- 2478US11927427B2Sighting system for a firearmCAMPBELL ROBERT MARSHALL·Filed 2021·Granted Mar 12, 2024·1 cites·21 claims
- 2577US10662370B2Nonionic surfactant compositions for enhanced oil recoveryDOW GLOBAL TECHNOLOGIES LLC·Filed 2017·Granted May 26, 2020·2 cites·6 claims
- 2673US12298103B2Camera sight device for a weaponHOOKSHOTTACTICAL LLC·Filed 2022·Granted May 13, 2025·0 cites·20 claims
- 2773US8088957B2Conversion of a multihydroxylated-aliphatic hydrocarbon or ester thereof to a chlorohydrinKRUPER JR WILLIAM J·Filed 2005·Granted Jan 3, 2012·1 cites·39 claims
- 2873US5234599AOn-line multidimensional chromatographic system with large volume injection handling for supercritical fluid chromatographyDOW CHEMICAL CO·Filed 1992·Granted Aug 10, 1993·45 cites·15 claims
- 2971US11384500B1Oil spill clean-up and recovery systems for marine vesselsCAMPBELL ROBERT MARSHALL·Filed 2020·Granted Jul 12, 2022·0 cites·12 claims
- 3070US12474141B2Rotationally deployed non-blocking firearm mirror accessoryCAMPBELL ROBERT MARSHALL·Filed 2023·Granted Nov 18, 2025·0 cites·17 claims
- 3170US8304563B2Batch, semi-continuous or continuous hydrochlorination of glycerin with reduced volatile chlorinated hydrocarbon by-products and chloroacetone levelsKRUPER WILLIAM J·Filed 2011·Granted Nov 6, 2012·1 cites·42 claims
- 3270US4965955ACapture apparatus for marine animalsCAMPBELL ROBERT M·Filed 1989·Granted Oct 30, 1990·32 cites·26 claims
- 3370US2025341071A1Equipment capable of cleaning up toxic blue-green algae from bodies of water from the sides of vesselsCAMPBELL ROBERT MARSHALL·Filed 2025·Application pending·0 cites
- 3469US8236975B2Process for the conversion of a crude glycerol, crude mixtures of naturally derived multicomponent aliphatic hydrocarbons or esters thereof to a chlorohydrinHOOK BRUCE D·Filed 2011·Granted Aug 7, 2012·1 cites·43 claims
- 3569US2025102271A1Firearm sighting device and systemCAMPBELL ROBERT MARSHALL·Filed 2024·Application pending·0 cites
- 3666US10077355B2Plasticizer compositions and methods for making plasticizer compositionsDOW GLOBAL TECHNOLOGIES LLC·Filed 2016·Granted Sep 18, 2018·0 cites·6 claims
- 3763US11846490B2Rotationally deployed non-blocking firearm mirror accessoryCAMPBELL ROBERT MARSHALL·Filed 2021·Granted Dec 19, 2023·0 cites·20 claims
- 3863US10845166B2Surveillance deviceCAMPBELL ROBERT MARSHALL·Filed 2019·Granted Nov 24, 2020·2 cites·18 claims
- 3963US5800434ASegmental rib carriage instrumentation and associated methodsFiled 1997·Granted Sep 1, 1998·103 cites·6 claims
- 4063USD381499SKey holderCAMPBELL ROBERT M·Filed 1995·Granted Jul 29, 1997·12 cites·1 claims
- 4163US5139681AOn-line multidimensional chromatographic system with large volume injection handling for supercritical fluid chromatographyDOW CHEMICAL CO·Filed 1990·Granted Aug 18, 1992·27 cites·7 claims
- 4263US2024053125A1Firearm sighting device and systemCAMPBELL ROBERT MARSHALL·Filed 2023·Application pending·0 cites
- 4361US2025277645A1Remotely operable surveilling and service providing device, employable on military vehicles and equipmentCAMPBELL ROBERT MARSHALL·Filed 2025·Application pending·0 cites
- 4459US10175028B2Device for use with a target viewing deviceCAMPBELL ROBERT MARSHALL·Filed 2016·Granted Jan 8, 2019·2 cites·20 claims
- 4559US5340475AOn-line supercritical fluid extraction multidimensional chromatographic systemDOW CHEMICAL CO·Filed 1991·Granted Aug 23, 1994·22 cites·7 claims
- 4658US12181251B2Video camera sight scopes with external reticlesCAMPBELL ROBERT MARSHALL·Filed 2022·Granted Dec 31, 2024·0 cites·17 claims
- 4758US10578405B1Sight adjustable rotating smart phone mount for firearmsCAMPBELL ROBERT MARSHALL·Filed 2018·Granted Mar 3, 2020·1 cites·3 claims
- 4857US7910781B2Process for the conversion of a crude glycerol, crude mixtures of naturally derived multihydroxylated aliphatic hydrocarbons or esters thereof to a chlorohydrinDOW GLOBAL TECHNOLOGIES LLC·Filed 2007·Granted Mar 22, 2011·0 cites·48 claims
- 4955US2015005420A1Plasticizer compositions and methods for making plasticizer compositionsDOW GLOBAL TECHNOLOGIES LLC·Filed 2013·Application pending·0 cites
- 5054US12253335B2Sight adjustable display mount for firearmsCAMPBELL ROBERT MARSHALL·Filed 2022·Granted Mar 18, 2025·0 cites·17 claims
Showing the top 50 of 73 patent records by PatentIndex Score.
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