Earth Day has been the inspiration for numerous environmental initiatives, including the EPA. and it has also been the motivation for many inventions:

U.S. Patent No. 5505114 protects a Simulated Musical Rainmaker, which the patent describes as the “perfect toy to celebrate Earth Day.

U.S. Patent No. D407127 protects the ornamental design for a baseball. which can include an Earth Day logo:

U.S. Patent No. 10,712,723 on a System and Method of Compiling and Organizing Power Consumption Data and Converting such Data into One or More User Actionable Formats, suggests that the invention “could include real-time feedback as events like Earth Day occur, to demonstrate the en-masse savings and conservation, the environmental impact, etc.”

U.S. Patent No. 9336540 on a Method and System for use of Game for Charity Donations suggests that it can be used to raise funds for Earth Day:

On this this 54th Earth Day, the world has accomplished a lot, but there is much more to be done; hopefully with creativity and inventiveness we can continue to make progress.numer