Fireworks Patents
On July 4, 1776, the U.S. declared independence from Britain. On this date every year, citizens and cities alike can often be seen celebrating, including by lighting fireworks.
As of today, July 4, 2009, there are 47 issued patents with the words "fireworks" in their title, five of which are plant patents. The most recently issued patent as of today is U.S. Patent No. 7,314,005, which is directed to an ignition system for consumer fireworks. These are apparently known in the industry as "1.4 g" fireworks.
Have a happy and safe July 4th!
