Mr. Sihotang has been experiencing Intellectual Property Rights practices since 1992. His valuable period with BIRO OKTROI ROOSSENO Intellectual Property Rights Law Firm and KATON & PARTNERS Law Firm gave him strong understanding from filing to granting of Copyrights, Patent and Trademarks applications in Indonesia and overseas application. Mr. Sihotang holds a license an Intellectual Property Rights Consultant (Patent Attorney) in Indonesia. Mr. Sihotang licensed as an Advocate as well. His practice includes Intellectual Property Rights, Corporate and Commercial matters and litigation matters.

Formerly was apointed to be a Head of District Attorney in several District Attorney in Indonesia. He is practicing as a Law Consultant for personals and/or corporations in Indonesia recently.

The Firm are supported by proper databases and assisted by several associates and administrators.