The following is a non-exhaustive list of Welker’s trademarks, registered trademarks and service marks.
A trademark is a word, phrase, symbol, or design that distinguishes the source of the goods or services.
The absence of a product or service name or logo from this list does not constitute a waiver of Welker’s trademark or other intellectual property rights concerning that name or logo.
| Welker's Trademarks | Generic Terms |
| Accu/Line™ | injection system |
| AI Control™ | automatic insertion |
| Checkpoint™ | sample bite verification panel |
| CleanFlow™ | instrument grade natural gas conditioning system |
| ECOsystem™ | pumpless vapor injection system |
| Essentials™ | basic system |
| Gravity Mixer™ | mixer |
| Great Barrier Sealant™ | lubricating sealant |
| Grime-X™ | multipurpose cleaner |
| inFlow™ | in main line sampler |
| inLoop™ | in fast loop sampler |
| IntelliScent™ | odorant monitor |
| MerCapture™ Kit | odor containment case & kit |
| OdorEyes® | |
| OdorXice™ | odorant remover |
| Plug & Purge™ | automatic purging system |
| Plus Welker™ | customized solutions |
| ProSlick™ | polishing finish |
| PulseInject™ | pumpless liquid injection |
| SafeBurn™ | odorant flare |
| Sample Spa™ | gas conditioner |
| Scale-X™ | dithiazine remover |
| Streamliner™ | sample take-off probe |
| Sulfur-Gon™ | filter media |
| TCC Optimum™ | crude oil container |
| Vacuum Breaker™ | stainless steel disc |
| Vanishing Chamber™ | collection cup |
| W logo | |
| W Welker® | |
| Welker Jet® | control valve |
| Welker® | |
| WelkerScope® | pipeline inspection tool |
| x-Wave™ | probe tip |