Trademark	Trademark Holder
O.S.	Quidel Corp.
O/H Pak	North Safety Products
O'GeneRuler	Thermo Fisher Scientific
O'RangeRuler	Thermo Fisher Scientific
Oaktec	Oak Technical Inc.
Oaktex	Oak Technical Inc.
Oakton	Cole-Parmer Instrument Co.
Oasis	Kimberly-Clark Corp.
Ob-Scertainer	Lab-Aids, Inc.
Obelisc	Sielc Technologies
Oberon	Oberon
OBSERVA	Biomerieux, Inc.
Observer	Orion
OccuLux	OccuNomix
Occunomix	Occunomix International
Occupational Hazards	Occupational Hazards, Inc.
Ocelot	Boekel Scientific
Octapette	Corning
Octastrip	Corning
Octocolumn	Promega Corp.
OdoClave	Bel-Art Products
OdorGone	Decon Laboratories
Odormycin	Temuka Diagnostics Limited
Odorplex	Sage Pharmaceuticals
Odyssey	LI-COR Biosciences
Oertling	W & T Avery Ltd.
Office Depot	Office Depot, Inc.
OfficeDuster	Advantus Corporation
Officemate	Chen, Peter
Offset	North Safety Products
Ohaus	Ohaus Corp.
Ohm-Cide	Static Solutions Inc.
Ohm-Shield	Static Solutions Inc.
Ohm-Stat	Static Solutions Inc.
OI	Detector Electronics Corporation
OIA	Inverness Medical
Oil-X	domnick hunter
OK	Propper Manufacturing
OK-1	OK-1 Manufacturing Co., Inc.
OligoStandards	Thermo Fisher Scientific
Olympus	Olympus America Inc.
Omaha Steaks	Omaha Steaks International, Inc.
oMALDI	Applera Corp.
OMEGA	CamelBak Products
Omega	Pall Corporation
Omega	Contec Inc.
Omega Shield	Microflex Medical
Omni	Ansell
Omni International	Omni International
Omni Prep	Omni International
Omni Tip	Omni International
Omni-Brite	Avery Dennison Corporation
Omni-Flo	Haws Corporation
Omni-Pette	Wheaton Inc.
Omni-Reacto Station	Thermo Fisher Scientific
OMNI-Sampler	Thermo Fisher Scientific
Omni-Vial	Wheaton Inc.
OMNIC	Thermo Fisher Scientific
OmniCap	Omnifit, Ltd.
Omnifit	Omnifit, Ltd.
OmniFLEX	Bruker Daltonics
OmniGlow	OmniGlow Corporation
OmniMix	Cepheid Corporation
OmniPac	Thermo Fisher Scientific
OmniPur	EM Industries, Inc.
OmniScribe	Allen Datagraph
OmniSette	Fisher Scientific
OmniSolv	EM Industries, Inc.
Omnispense	Wheaton Inc.
OmniSwab	Whatman Inc.
OmniTech	Omni International
OmniTray	Iomega Corp.
OmniTrust	Omni International
OMNIView	Applied Materials, Inc.
On-Target	Thermo Fisher Scientific
ON-TARGETplus	Thermo Fisher Scientific
ONE Broth	Thermo Fisher Scientific
One Click	Mettler Toledo
One Shot	Invitrogen
One Source, Infinite Solutions	Fisher Scientific
ONE SOURCE. INFINITE SOLUTIONS.	Fisher Scientific
One Touch	Aearo Technologies
One Touch	LifeScan, Inc.
One Touch II Data Dock	Johnson & Johnson
One-Fit	Sperian
ONE-Glo	Promega Corp.
One-Sep	Wheaton Inc.
One-Shot	Technical Concepts L.P.
One-Step	Corning
One-Stop PlugShop	Moldex
One-Touch	Thermo Fisher Scientific
One-Touch Calibration	Thermo Fisher Scientific
One-Touch Measurement	Thermo Fisher Scientific
OneHand	Simport Plastics
OnePette	Corning
OneStep	Bradley Corp.
Onguard	Onguard
ONYX	Coulter International Corp.
Onyx	MSA
Op-Tema	Willson
OpArrays	Operon Biotechnologies, Inc.
Open Access	Thermo Fisher Scientific
OPEN BIOSYSTEMS	Thermo Fisher Scientific
Open Windows	Cogent Data Technologies, Inc.
Open-Center Stay	Ergodyne Corporation
OpenGL	Silicon Graphics, Inc.
Opera	Opera Software ASA
Opera Software	Opera Software ASA
Operation Space Chase	Learning Resources, Inc.
Operational Simplicity	Thermo Fisher Scientific
Operon	Operon Biotechnologies, Inc.
OpHyb	Operon Biotechnologies, Inc.
Opossum	Owl Separation Systems
Opsys	Thermo Fisher Scientific
Opsys MR	Thermo Fisher Scientific
Opti-Aid	Bradley Fixture
Opti-Freeze	MP Biomedicals
Opti-Guard	Optimize Technologies
Opti-Klens	Desert Assembly, Inc.
Opti-Lok	Optimize Technologies
Opti-Seal	Optimize Technologies
Opti-Soft	Cardinal Health
Opti-Solv	Optimize Technologies
Opti-TOF	AB SCIEX
OptiBeam	AB SCIEX
OptiBind	Thermo Fisher Scientific
OptiCell	Thermo Fisher Scientific
Opticlear	Kimble Glass
OptiClone	MP Biomedicals
Opticon	Bio-Rad Laboratories
Opticul	BD (Becton, Dickinson and Company)
OptiDry	Fisher Scientific
OptiFilter	MSA
Optifreeze	MP Biomedicals
OptiGrow	Fisher Scientific
Optik-Wipes	Fisher Scientific
OptiLink	Thermo Fisher Scientific
Optilux	BD (Becton, Dickinson and Company)
Optiluxiso	BD (Becton, Dickinson and Company)
Optima	Fisher Scientific
Optima LCMS	Fisher Scientific
OptimAir	MSA
Optimase	Transgenomic, Inc.
OptiMatrixx	Leica Microsystems, Inc.
Optimax FT	Cardinal Health
Optime	Aearo Technologies
Optimizer	Millipore Corp.
Optimuff	Howard Leight
Optimum Results	Thermo Fisher Scientific
OptiPhase	Optiphase, Inc.
OptiPlate	Packard Instrument Co.
OptiPrep	Nycomed Amersham International
OptiPro	Smart Solutions
OptiQuant	Thermo Fisher Scientific
OptiRead	Thermo Fisher Scientific
Optisorb	Bacou-Dalloz
Optispeed	Labconco
OptiStart	Invitrogen
Optitran	Schleicher & Schuell
Optizyme	Fisher Scientific
Optrel	Sperian
OPUS	PB Diagnostic Systems
Oracle	Oracle Corporation
Oragene	DNA Genotek
Orange County Choppers	Orange County Choppers Design Properties, LLC LTD
Oranyl	Otis Clapp & Son
Oranylplus	Otis Clapp & Son
Orbit	Thermo Fisher Scientific
Orbitrap	Thermo Fisher Scientific
Orbitrap Elite	Thermo Fisher Scientific
Orbitrap Velos Pro	Thermo Fisher Scientific
Orbitron I	Boekel Scientific
Orbitron II	Boekel Scientific
ORBO	Supelco, Inc.
Oregon	Skedco, Inc.
Oregon Green	Molecular Probes, Inc.
Organex-Q	Millipore Corp.
Organicfree	Thermo Fisher Scientific
Organization Station	Learning Resources, Inc.
Origen	Igen Inc.
OriGene	OriGene Technologies, Inc.
Orion	Thermo Fisher Scientific
Orion	MSA
Orion	Thermo Fisher Scientific
Orion	Willson
Orion Star	Thermo Fisher Scientific
Orion Starts	Thermo Fisher Scientific
Orlon	E.I. duPont de Nemours
ORPTestr	Cole-Parmer Instrument Co.
Orthane	EP Scientific
Ortho Stand	Tennessee Mat Company, Inc.
Ortho-Clinical Diagnostics	Johnson & Johnson
Orthoclone OKT	Johnson & Johnson
Osborn Scientific	Osborn Scientific Group
OSHACoach	Safety Software, Inc.
OSHALOG	Safety Software, Inc.
OSM	Organic Sales & Marketing, Inc.
Osmette	Precision Systems
Osmette A	Precision Systems
Osmette II	Precision Systems
Osmette III	Precision Systems
Osmette S	Precision Systems
Osmette XL	Precision Systems
Osmonics	GE Osmonics
OSOM	Genzyme Corporation
OSTEOMARK	Ostex International, Inc.
Oster	Sunbeam Corporation
Osterizer	Sunbeam Corporation
Ostex	Ostex International, Inc.
OTG	Uvex Safety
OTT-LITE	Environmental Lighting Concepts, Inc.
Otter Boxes	Otter Products
Outer Banks	Jasper Textiles, Inc.
Outlaw	American Allsafe Co.
Outlook	Microsoft Corp.
Ovation	VistaLab Technologies
Over-the-Spill	Rubbermaid
Overdrive	Wheaton Inc.
OvuKIT	Quidel Corp.
Ovuquick	Quidel Corp.
Owl	Thermo Fisher Scientific
OX	Aearo Technologies
Oxford	Oxford Worldwide LLC
Oxi	WTW Measurement Systems
OxiCal	WTW Measurement Systems
OxiFerm	BD (Becton, Dickinson and Company)
OxiTop	WTW Measurement Systems
Oxoid	Oxoid Inc.
Oxone	E.I. duPont de Nemours
OXSAS	Thermo Fisher Scientific
Oxscan	Thermo Fisher Scientific
Oxy-Max	Alltech Associates
Oxy-Swab	Thermo Fisher Scientific
Oxy-Trap	Alltech Associates
OXYTUNE	Thermo Fisher Scientific
Oyster	Extech Instruments Corp.