The search fee paid by US filers for the Korean International Searching Authority (for the first invention) will increase on April 1, 2018 from $1134 to $1218, an increase of about seven percent.
The nice inexpensive fee at ISA/KR for the second through n-th inventions will, however, remain unchanged at a mere ₩225000 (about $208 at today’s exchange rate).
This will leave the ranking of search fees (for the ISAs available to filers in RO/US) as of April 1, 2018 the same ranking as before that date:
- ISA/EP $2202
- ISA/US $2080 (large entity)
- ISA/AU $1722
- ISA/SG $1646
- ISA/JP $1385
- ISA/KR $1218
- ISA/US $1040 (small entity)
- ISA/IL $1009
- ISA/RU $691
- ISA/US $520 (micro entity)
For filers in RO/US, the most frequently selected ISAs are US, EP, and KR. Those three ISAs account for something like 95% of the ISA choices made by RO/US filers. Saying this differently, it is relatively rare that a filer in RO/US selects AU, SG, JP, IL or RU as the ISA.
For filers who anticipate an Invitation to Pay Additional Fees, ISA/KR continues to be an attractive choice from the point of view of fee costs, given the inexpensive fee for second through n-th inventions.