After the successful registration of a trademark application, it cannot be modified. The composition and protection scope of the following trademarks are 1. As a trademark, the letters refer to the smallest writing unit of pinyin characters or phonetic symbols, including pinyin characters and foreign letters such as English letters and Latin letters. The original Trademark Law classified a trademark consisting only of letters as word mark, while the newly revised Trademark Law of 200/kloc-0 regards letters as one of the constituent elements of a trademark, which is more practical and convenient for the trademark authorities to examine and approve trademark registration applications according to law. 2. Numbers, as the constituent elements of trademarks, are also the new provisions of 200 1 Trademark Law. Numbers that constitute trademarks can be Arabic numerals or Chinese capital numerals. 3. As a three-dimensional symbol that constitutes a trademark, it can also be called a three-dimensional symbol, which is a three-dimensional symbol with length, width and height. Trademark marks composed of three-dimensional marks are called three-dimensional marks, which are different from the trademark plans we usually see on the plane, but appear in the form of three-dimensional substances, which may appear in the shape of goods, containers of goods or other places. Adding the provisions on the registration and protection of three-dimensional trademarks is a new content in the Trademark Law revised by 200 1, which will make China's trademark protection system more perfect. 4. Color combination, as a trademark element alone, is also a new addition in 200 1 Trademark Law. The unique and novel TINT not only gives people a sense of beauty, but also has great significance. It can show the product or source, and can also distinguish producers, operators or service providers. The above-mentioned six types of trademark elements can be registered as trademarks alone, or two or more of them can be arbitrarily combined, the same or different, but they must comply with the relevant provisions of Articles 8 and 9 of the Trademark Law. 5. If the colors of words, figures, letters, numbers, sounds, three-dimensional signs or their combinations that constitute a trademark are not clearly specified when applying for trademark registration, they shall be registered in black and white, and shall also be protected in black and white. Where a specified color or color combination is explicitly put forward, it shall be registered and protected according to the specified color or color combination.