The doodling is one of the innovative marketing techniques adopted by search engine giant Google to widen its popularity locally and internationally. So, if you are planning to copy the doodling technique, it will lead you to trouble. It's because the Mountain View based Google got the patents on Google Doodles.
If you are still out of 'doodle' knowledge, here it is - Doodles are known as the decorative changes that are made to the Google logo to celebrate holidays, anniversaries, and the lives of famous artists and scientists. Unlike many other corporate companies, Google always excited the world with new designs on the corporate logo.
United States Patent and Trademark Office (USPTO) finally granted the patent on Google doodle after 10 years of lobbying. Google co-founder Sergey Brin filed for doodle patent on Apr 30, 2011, but granted only on Mar 22, 2011. USPTO credited Sergey Brin as the inventor of the "Systems and methods for enticing users to access a web site" patent.
"A system provides a periodically changing story line and/or a special event company logo to entice users to access a web page. For the story line, the system may receive objects that tell a story according to the story line and successively provide the objects on the web page for predetermined or random amounts of time. For the special event company logo, the system may modify a standard company logo for a special event to create a special event logo, associate one or more search terms with the special event logo, and upload the special event logo to the web page. The system may then receive a user selection of the special event logo and provide search results relating to the special event," describes abstract of the patent.