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What's the difference between a trademark, a copyright and a patent?

By Paul Niemann

[JUNE 23, 2005]  There are three types of intellectual property that you probably know about: trademarks, copyrights and patents. There's a fourth type, called trade secrets, which very few people know much about. I guess that why they're called trade secrets. We will dissect each of the four types in this column.

A trademark is a word, phrase or symbol that identifies the source of a product and distinguishes it from others. Brand names are trademarked. Trademarked product names or company names are shown with the "™" symbol, usually written in a smaller font.

Example: Invention Mysteries™

A registered trademark is a trademark or service mark which has been registered with the U.S. Patent & Trademark Office. The symbol for a registered trademark is "®."

Example: Pepsi®

Trademark rights arise from either using the mark in public or filing an application to register it with the Patent & Trademark Office. Certain items are not eligible for a trademark, such as letters, numbers, slogans and colors (such as the pink color of Owens-Corning's insulation).

A service mark is the same as a trademark except that it identifies and distinguishes the source of a service rather than a product. Service marks are shown with the symbol "SM."

Example: GE's We Bring Good Things To LifeSM

A copyright protects an original artistic or literary work and lasts for the "life of the author plus 70 years." Copyrights protect the following: literary works, such as books, plays, articles or poems; songs (without a copyright, there would be no royalty payments to the musician); movies, including movie soundtracks; pictures and paintings; architectural works; and pantomimes.

A copyright is created when the work is published with the copyright symbol "©" and the year next to it, and the copyright holder usually places his name on the copyright notice, too. A copyright can also be filed with the Library of Congress to prevent or resolve future disputes over ownership.

Example: Warner Brothers © 2001 or Copyright © Warner Brothers 2001.

What is not eligible for copyright protection? Works that consist entirely of common knowledge and contain no original work, such as calendars, rulers, height and weight charts, tape measures.

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A patent protects an invention for 20 years from the date the patent is applied for with the patent office. There are three types of patents: utility, design and plant. A utility patent protects the functionality of an invention; a design patent protects the appearance of an invention; and a plant patent, as the name implies, refers to the discovery or creation of a new plant. The patent number, or the term "patent pending," is placed somewhere on the product or the packaging.

The term "patent pending" means that a patent has been applied for but is not yet issued. If the patent later issues, the patent holder is protected for 20 years from the date of his application. The unauthorized use of another's patent, trademark or copyright is called "infringement." When this happens, the result is usually litigation through the courts.

Approximately 20 percent of the patents issued each year go to independent inventors, while 80 percent go to corporations; yet more than two-thirds of the major new product breakthroughs in the 20th century came from individual inventors rather than corporations. Further, while many people assume that a patent usually makes an inventor wealthy, fewer than 2 percent of all patents actually produce a profit for the inventor.

The fourth and final type of intellectual property is the trade secret. Examples of trade secrets include the recipe for Colonel Sanders' chicken and the formula for Coca-Cola®. Trade secrets are not patented for two reasons: First, patents expire after 20 years. Second, patents become common knowledge once they're issued and, even though they offer legal protection against infringement, patent attorneys and product developers can sometimes "design around the patent." In some cases, a firm will try to reverse-engineer a product to find out what ingredients it contains and how it is made.

That, in a nutshell, explains the difference between a trademark, a copyright and a patent and what all those symbols stand for.

[Paul Niemann]

Paul Niemann is the author of the "Invention Mysteries" book, which is available through his website and at fine bookstores everywhere. He may be reached at niemann7@aol.com.

© Paul Niemann 2005

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