| Trademark | Trademark Holder |
|---|
| Walkaway | Control Co. |
| Walkaway | Ziamatic Corporation |
| Walkman | Sony Corporation |
| Walkon | National Marker Co. |
| Wallmark | American Allsafe Co. |
| Wal-Mart | Wal-Mart Stores, Inc. |
| Wampole | Wampole Laboratories |
| Wampole IMPACT RPR | Carter-Wallace Inc. |
| Waring | Dynamics Corporation of America |
| Waring | Waring Products |
| WarmGel | Prism |
| Warrior | Bilsom |
| WartHog | Aearo Technologies |
| Washdown QuickBerm | Justrite Mfg. Co. |
| Wastewatcher | Kontes Glass |
| Water Block Plus | Johnson & Johnson |
| WaterBugs | Thermo Fisher Scientific |
| Water-Jel | Water-Jel Technologies |
| WaterPro | Labconco |
| WaterPro BT | Labconco |
| WaterProfile | Labconco |
| Waters | Waters Corporation |
| WaterSaver | Mansfield Plumbing Products, Inc. |
| WaterShot | Hygiena International |
| WATSON | Thermo Fisher Scientific |
| Watson LIMS | Thermo Fisher Scientific |
| Watson-Marlow | Watson-Marlow |
| Wave | Bose Corporation |
| Wave Bioreactor | GE Healthcare Biosciences |
| WaveBrake | Rubbermaid |
| Waveform Analysis Technology | Biomerieux, Inc. |
| WAVY LINES DEVICE | Thermo Fisher Scientific |
| Wax Out | Fisher Scientific |
| WD-40 | WD-40 Manufacturing Company |
| WearFR | Bulwark |
| Wearwell | Tennessee Mat Company, Inc. |
| Weather Echo | Davis Instruments Corporation |
| Weather Echo Plus | Davis Instruments Corporation |
| Weather Wise | Learning Resources, Inc. |
| WeatherLink | Davis Instruments Corporation |
| WEATHERPAK | Coastal Environmental Systems, Inc. |
| Webcertificate | Ecount |
| Webdri | Tingley Rubber Corporation |
| Webseal | Thermo Fisher Scientific |
| Wedgewell | Thermo Fisher Scientific |
| Weigh the Benefits | Ohaus Corporation |
| Welch | Welch Vacuum |
| Welders Wear | Stanco Manufacturing Inc. |
| Weld-O-Vista | Scott Technologies |
| Wellcogen | Thermo Fisher Scientific |
| Wellcolex | Thermo Fisher Scientific |
| Wells Cargo | Wells Cargo, Inc. |
| WELLMATE | Thermo Fisher Scientific |
| Wells Lamont | Wells Lamont |
| WELLWASH | Thermo Fisher Scientific |
| Wescan | Alltech Associates |
| Wesco | Fire Facilities, Inc. |
| Wescor | ELITech Group SAS |
| West Chester | West Chester Holdings, Inc. |
| Westase | TaKaRa Shuzo Co. |
| Westemp | Fire Facilities, Inc. |
| Western Blue | Promega Corporation |
| Western Lighting | PerkinElmer |
| WESTERNBREEZE | Thermo Fisher Scientific |
| WesternDot | Thermo Fisher Scientific |
| Western-Star | Thermo Fisher Scientific |
| Westover | Thermo Fisher Scientific |
| Westran | The Whatman Group |
| Wet-Pruf | Kendall Company |
| WFIQ | Decon Laboratories |
| Whatman | GE Healthcare Bio-Sciences/Whatman Brand |
| Whatman | Whatman Inc. |
| Whatman GD/X | GE Healthcare Bio-Sciences/Whatman Brand |
| Whatman Inc. | MicroCaster |
| Wheaton | Wheaton Inc. |
| Wheaton Dry Seal | Wheaton Inc. |
| Wheaton Media Square | Wheaton Inc. |
| Wheaton Micro Kit | Wheaton Inc. |
| Wheaton S/T | Wheaton Inc. |
| Wheaton Semi-Micro Kit | Wheaton Inc. |
| Wheaton-33 | Wheaton Inc. |
| Whirl-Pak | Nasco International, Inc. |
| Whisk-on-pan | Whit Corporation |
| Whisper-tip | Smart Solutions |
| White Knight | White Knight Engineered Products |
| White Swan | Encompass Group |
| Whitecap | 3M Company |
| Whitey | Whitey Research Tool Co. |
| Whiting & Davis Safety | WDC Holdings, Inc. |
| Whizard | Wells Lamont |
| Who's Minding the Planet? | YSI Inc. |
| Who's Who in American Education | Marquis |
| WIBGET | 3M Company |
| Wicked | Ergodyne Corporation |
| WideBand ActivatIon | Thermo Fisher Scientific |
| Widesight | Aearo Technologies |
| Wiley | John Wiley & Sons |
| Wiley | Thomas Scientific |
| Willson | Willson |
| WillsonMax | Willson |
| Wilshire | Wilshire Technologies, Inc. |
| WindGard | American Allsafe Co. |
| Windjammer | American Allsafe Co. |
| Windows | Microsoft Corporation |
| Windows 7 | Microsoft Corporation |
| Windows CE | Microsoft Corporation |
| Windows NT | Microsoft Corporation |
| Windows Vista | Microsoft Corporation |
| Windows XP | Microsoft Corporation |
| Winfirst | Thermo Fisher Scientific |
| WinFIRST Lite | Thermo Fisher Scientific |
| WinOE | Thermo Fisher Scientific |
| Winpette | Ulster Scientific, Inc. |
| WinPrep | Packard Instrument Co. |
| WinREMS | Thermo Fisher Scientific |
| Wintherm | ThermoAnalytics, Inc. |
| WinTrace | Thermo Fisher Scientific |
| WinWedge | TAL Technologies, Inc. |
| WinXRD | Thermo Fisher Scientific |
| WinXRF | Thermo Fisher Scientific |
| Wipe | Current Technologies |
| Wiretrol | Drummond Scientific |
| WISP | Waters Corporation |
| Wittnauer | Longines-Wittnauer, Inc. |
| Wizard | Estes Industries |
| Wizard | Promega Corporation |
| WKITS | Thermo Fisher Scientific |
| WOB-L | Welch Vacuum |
| Wonderware InTouch | Wonderware Corporation |
| Word | Microsoft Corporation |
| WordPerfect | Corel Corporation |
| Workcell | Brinkmann Instruments |
| WorkEasy | Sperian |
| Workhorse | Control Company |
| WorkHorse | Kimberly-Clark Corporation |
| Workhorse | Rayovac Corporation |
| WorkKnit HD | North Safety Products |
| Worklon | Superior Surgical Manufacturing |
| Workman | MSA |
| Worknit | North Safety Products |
| WorkRite | WearWell |
| WorkSAFE | Koehler-Bright Star, Inc. |
| WorkSafe | Tennessee Mat Company, Inc. |
| WorkSmart | Ergodyne Corporation |
| Workstation | Enpac Corporation |
| World Book | World Book, Inc. |
| Worm-a-Way | Flowerfield Enterprises |
| Wratten | Eastman Kodak Co. |
| Wrench-Tight | Alltech Associates |
| Wrist-Action | Burrell Corporation |
| WristBandit | Miller Fall Protection |
| Write-On | Control Company |
| WriteOnIt | Labelon |
| WypAll | Kimberly-Clark Corporation |
| Wyr Cudas | American Allsafe Co. |
