The makers of the Harry Potter films have filed a request to trademark the West End play The Cursed Child, sparking speculation it may be heading for the big screen.

The play is a follow-up to author JK Rowling's successful Harry Potter series of novels. It follows the boy wizard's life 19 years after the final book in the sequence, The Deathly Hallows.

Warner Bros Entertainment Inc submitted the trademark application on July 8, according to the official UK Intellectual Property Office website.

The request lists a range of goods and services including "motion picture films featuring comedy, drama, action, adventure and/or animation, and motion picture films for broadcast on television featuring comedy, drama, action, adventure and/or animation".

There is also a series of products, such as "stereo headphones, batteries, cordless telephones, CD players, CD ROM computer game discs, radios and mouse pads".

A section also mentions "meat tenderisers for household purposes and binding agents for ice-cream".

Global entertainment giant Warner Bros distributed the eight existing Harry Potter movies and will release the upcoming Rowling-penned offshoot, Fantastic Beasts and Where to Find Them.

The entertainment conglomerate has not yet commented on the trademark bid.

Rowling insisted in February this year that the Cursed Child would not be turned into a movie.