Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_2279413_1 (pct_route_available VARCHAR, type_of_protection VARCHAR)

### Question ###
For small patent type of protections, what type of PCT route is available?

### Accurate SQL ###

SELECT pct_route_available FROM table_2279413_1 WHERE type_of_protection = "small patent"