Category Archives: False marking

Frisbee False Marking Case

Posted on July 7, 2011 by mjwhitekingston

Interesting article in the WSJ about a false patent marking case involving Wham-O, maker of frisbees. The company is the latest defendant in a string of lawsuits against firms accused of marking their products with patent numbers that are long … Continue reading →

Posted in False marking, frisbee, patent numbers, WHAM-O | Leave a comment

Ghost of Patents Past

Posted on April 9, 2010 by mjwhitekingston

Have you ever noticed old patent numbers printed on new products? I own a pie dough blender that I bought new about 15 years ago. Etched on its blade are three US patent numbers, 1486255, 1645052 and 1724356. A quick … Continue reading →

Posted in False marking, patent numbers | Leave a comment