Inventor · disambiguated record

Ok Ryul Yang

Also filed as: YANG OK RYUL

1 granted patent·12 citations·filing 2003–2003

34Inventor score

Technology areasH04M

Files withSK TELECOM CO LTD1

Top patents by PatentIndex Score

1 record

0166US7072644B2Method for providing a caller-based ringback tone sound in case of a non-subscribed calledSK TELECOM CO LTD·Filed 2003·Granted Jul 4, 2006·12 cites·8 claims

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