Bubble wrap Bubble wrap Bubble wrap is a pliable transparent plastic material used for packing fragile items. Regularly spaced, protruding air-filled hemispheres (bubbles) provide cushioning for fragile items. "Bubble wrap" is a generic trademark owned by Sealed Air Corporation. In 1957 two inventors named Alfred Fielding and Marc Chavannes were attempting to create a three-dimensional plastic wallpaper. Although the idea was a failure, they found that what they did make could be used as packing material. Sealed Air Corp. was co-founded by Alfred Fielding in 1960. The term is used generically for similar products, such as bubble pack, bubble paper, air bubble
Used and Useful Principle Used and Useful Principle In the utilities industry, the Used and Useful Principle is a concept that requires energy assets to be physically used and useful to current ratepayers before those ratepayers can be asked to pay the costs associated with them. This is a fundamental principle of utility regulation. The used and useful principle precedes the prudent investment rule and is established in law. In Smyth v. Ames, 169 U.S. 466 (1898), a test was formulated by the United States Supreme Court to measure the extent to which regulated companies were protected from legislative expropriation on behalf of the