Lasman Sitorus


Lumenta, Sitorus & Partners
Graha Simatupang, Tower IIB 7th Floor
Jalan TB. Simatupang, Kav. 38
Jakarta Selatan 12540 - Indonesia

Tel: +62-21-7829402
Fax: +62-21-7829403


Sitorus is a Bachelor in Law from Christian University of Indonesia. He also has a Master-of-Law degree from Tarumanegara University majoring in Intellectual Property Law. With an extensive intellectual property law career for almost more than 25 years, Sitorus is a renown professional for patent, trademark and industrial design practice. He is both a flexible negotiator in ADR and a tough litigator before the Indonesian Trial and Appellate Court to secure a favorable outcome for clients in any dispute involving IP. He is now responsible for the management and day-to-day operational activities of LSP. Sitorus is a member of Asian Patent Attorney Association (APAA), International Trademark Association (INTA).
  • Counseling on the patentability of inventions;
  • Preparation, filing and prosecution of local and conventional patent applications, including PCT applications;
  • Providing professional advice and litigation service relating to cases, which involve issues over validity and infringement of patents.
  • Providing patent annuity service, including checking and verifying annuity payment status.
Established since 2004 by the founding partners J.B. Lumenta and a number of distinguished IP Professionals, Lumenta, Sitorus & Partners is a fast growing and reputable IP law firm in Indonesia which specializes in intellectual property matters.

While institutionally we are not the only IP law firm, we nevertheless are senior attorneys of at least 45 years experience as pioneers in the area of intellectual property practice in this country, particularly with regard to the building-up and enforcement of Patent and Trademark regimes.

Through the expertise and professionalism of our teamwork, we provide a global coverage of client services on counseling and consulting of various IP protections with speed and precision, including all IP filings and prosecution (patent, trademarks, industrial design and copyright applications), maintaining, and enforcing IP rights, as well as representing clients in dispute resolutions through either legal proceedings or ADR.