What does Sony have up their sleeve? According to the European Union Intellectual Property Office, Sony Interactive Entertainment Europe has trademarked "The Inpatient," "Shadow of the Colossus" and more marks in Europe.

As you can see from the quick screenshot, "The Inpatient" has been trademarked for Class 9 (Computer Game Software), Class 28 (Controllers/Peripherals/Hardware/Electronic Games), and Class 41 (Online Game Services). It is worth noting, as always, that Class 41 can be almost anything online. In other words, it can be as broad as an always-online game or as shallow as trophy lists. Up to now, there has been no indication on what "The Inpatient" may be, if it is in active development, or who may be developing it.

The most notable in the list is a trademark for "Shadow of the Colossus" -- this one is the only being trademarked for Class 9 and Class 41. Whether this is just making sure the previous games' intellectual property is protected, or whether this is indicating an (unlikely) sequel, it is an odd move to see only hours before Sony's E3 conference.

Along with "The Impatient," SIEE has also trademarked other, less conspicuous games. "Bravo Team", "Frantics", "Knowledge is Power" and multiple versions of "That's You!" in a variety of languages -- all for Class 9, 28, and 41 -- have shown up, also pointing to more

Notably, this trademark action happens immediately before Sony's E3 Press Conference, happening later today at Monday 6PM Pacific. Much of Sony's conference has remained leak-free, however other, previously-surfaced trademarks like "The Sentinel" may be an indicator into what new IPs we may see.