https://www.sparkfun.com/news/1428?_ga= ... 1473149173
Fast forward six years and many thousands of multimeters sold. On March 7th, we were notified by the Department of Homeland Security/US Customs and Border Protection that our latest shipment of 2,000 multimeters was being inspected...
What do our multimeters have to do with this? Turns out Fluke filed for a trademark in 2000 and received it in late 2003....
The multimeters we sell have a yellow-ish border (it’s more like macaroni and cheese really) so we may be violating Fluke’s trademark. From Fluke’s Trademark filing:...

So much for TPP, free trade etc