Mathematical expressions and climate change percussion instruments* cannot be trademarked. Also, trademarks are not universal and only apply to specific classes. They are listed further below.
Yes, I know this thread is intended just for fun.
Which is why you can now let out a collective groan...
* Al Gore Rhythms
============ Word Mark F(X) Goods and Services IC 018. US 001 002 003 022 041. G & S: Luggage IC 025. US 022 039. G & S: Boots; Gloves; Hats; Jackets; Pants; Parkas; Scarves; Shirts; Shoes; Snow pants; Swim wear; Tops; Vests
Standard Characters Claimed Mark Drawing Code (4) STANDARD CHARACTER MARK Serial Number 85639594 Filing Date May 31, 2012 Current Basis 1B Original Filing Basis 1B Published for Opposition October 30, 2012 Owner (APPLICANT) Lands' End Direct Merchants, Inc. CORPORATION DELAWARE 820 W. 78th Street Richfield MINNESOTA 55423 Type of Mark TRADEMARK Register PRINCIPAL Live/Dead Indicator LIVE