Under intellectual property law, owners are granted certain exclusive rights to a variety of intangible assets, such as musical, literary, and artistic works; discoveries and inventions; and words, phrases, symbols, and designs. Common types of intellectual property include copyrights, trademarks, patents, industrial design rights and trade secrets. Intellectual property law involves advising and assisting individuals and businesses on the development, use, and protection of intellectual property -- which includes ideas, artistic creations, engineering processes, scientific inventions, and more.
The city of Gretna is the parish seat of Jefferson Parish, in the US state of Louisiana. "Gretna, Louisiana (LA) Detailed Profile" (notes), City Data, 2007, webpage: C-Gretna. "Census 2000 Data for the State of Louisiana" (town list), US Census Bureau, May 2003, webpage: C2000-LA. </ref> Gretna is on the west bank of the Mississippi River, just east and across the river from uptown New Orleans. It is part of the New Orleans–Metairie–Kenner Metropolitan Statistical Area. The population was 17,423 at the 2000 census.