I am hoping that you don't use any of these incorrectly either
@Simon
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Astroturf. Artificial grass, trademarked by Monsanto Company.
Biro. Used commonly in the UK to describe a ballpoint pen. Owned by Societe Bic.
Bubble wrap. Common term for inflated/cushioned packaging-type material. Trademark owned by the Sealed Air company.
Cashpoint. A common way to describe cash machines; this trademark is owned by Lloyds Bank.
ChapStick. Lip balm brand owned by Pfizer.
Filofax. Term used to describe a personal organiser, the trademark was originally owned by the Letts Filofax Group.
Frisbee. A flying disc toy initially created by Wham-O.
Hoover. Widely used as a noun and verb for a vacuum cleaner.
Jacuzzi. Referring to a hot tub or whirlpool bath created by the Jacuzzi company.
Lava lamp. Refers to a liquid motion lamp made by Mathmos.
Memory stick. Owned by the Sony corporation, it’s typically used to refer to all USB flash drives.
Onesies. Used to describe an adult bodysuit and was initially trademarked by the Gerber Products company.
Ping Pong. Trademarked by Jaques and Son and later passed to Parker Bros, who still try to enforce the trademark in the US.
Plasticine. Modelling clay that has a putty-like substance to it. Often used for clay animation.
Rollerblade. A specific type of inline skate made by Nordica.
Sellotape, owned by a company in Winsford, Cheshire, is a generic term for adhesive tape.
Stanley Knife. A utility knife popularised by Stanley Works in the UK.
Super Glue.A name for the Cyanoacrylate adhesive made by the Super Glue Corporation, the term is interchangeable for all brands of glue.
Tannoy. Commonly used in the UK for any Public Address (or PA) system. Tannoy was a British manufacturer of loudspeakers and PA systems.
Tarmac. Used to describe asphalt road surfaces. Surprisingly, the trademark is owned by the Tarmac company.
Thermos. A vacuum-insulated flask initially trademarked by Thermos GmbH.
Tipp-Ex. Common in the UK to refer to any brand of white correction fluid, or used by nobbers to refer to mik's beautiful white tyre lettering. Owned by Tipp-Ex GmbH & Co.
Trampoline. Originally a trademark of the Griswold-Nissen Trampoline and Tumbling Company
Tupperware. Trademarked by Earl Tupper after they made plastic storage containers popular in the 1940s.
Vaseline. Often used by consumers as a generic term for petroleum jelly. Owned by Unilever.
Velcro. Still trademarked by Velcro Companies, this has become a verb for a hook-and-loop fastening.
Zimmer. Many walking frames are referred to as Zimmer Frames, the trademark for which is owned by Zimmer Holdings.