Our Team

The Ehrlich Group offers clients access to some of the finest legal and technical and minds in the industry, with more than 160 employees who have worked as jurists, patent attorneys and technical advisors. Our firm can claim renowned experts in all areas of Intellectual Property, including Patents, Copyrights, Trademarks, Designs, Trade Secrets Plant Breeder’s Rights, Anti-Counterfeiting, Open Source, and much more.

Yissachar Bertisch

Full Name: Adv. Yissachar Bertisch 

Title: Chief Operations Officer

Email: yiss@ipatent.co.il

Phone: +972-73-7919199


Employed at Ehrlich and Fenster since 2004. Responsibilities include implementation of Office procedures and policies, including Costumer Service, Fee Schedules, Tenders, Status Reports, Rankings, as well as vast experience with Patent Rules, Regulations and procedures.   


  • Client portfolio management

  • Assisting with procedural and administrative processes of Patent Portfolio

  • Newsletters


  • 2013 Admitted to practice, Israel Bar Association

  • 2007-2012 LL.B. Law degree, Faculty of Law, Ono Academic College, Israel

  • 2012 – 2013 Internship – R. MELZER LAW OFFICE

  • 2002-2005  Bachelor of Science in Logistics and Economics from Bar-Ilan University, Israel

Ask me about

  • Patent Filing And Prosecution process 

  • Service Inventions

  • Patent Marking

  • Restrictions to Priority Filings based on Nationality / Residency

  • Grace Period for filing in view of Publication

  • Reinstatement

Community (Volunteer work) 

  • Community volunteering in The North Central Synagogue Tel Aviv, including charity work and community meals during Shabbat and holiday periods.

Contact US

G. E. Ehrlich (1995) Ltd.
Sky Tower, 13th Floor
35 Hamasger Street
6721407 Tel Aviv, Israel
Email: info@ipatent.co.il
Tel.: +972-73-7919199
Fax.: +972-73-7919100