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100th Anniversary Katzarov's Manual on Industrial Property

Over 200 countries

Main IP Conventions

At-a-glance tables for easy reference

Available protection

Filing and maintenance requirements

IP prosecution and enforcement tips

Latest updates

Eurasian Patent Organization and Laos join the Hague System

In force from October 10, 2026 and October 14, 2026, respectively

Saudi Arabia joins the Madrid System

As of October 8, 2026

El Salvador joins 3 WIPO treaties

As of October 7, 2026

The UAE joins the Locarno Agreement

As of October 6, 2026

Kurdistan-Iraq: reintroduced 15-year protection period for trademarks

Effective June 1, 2026

U.S. patents: foreign-domiciled applicants and patent owners must be represented by a USPTO registered patent practitioner

Effective July 20, 2026

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June 2, 2026

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April 2, 2026

Moldova is set to join the European Patent Organisation

On June 1, 2026

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March 26, 2026

WIPO’s Riyadh Design Law Treaty (RDLT)

Albania is the 1st country to ratify the RDLT

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March 19, 2026

IP and advanced cell therapies

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February 19, 2026

February Newsletter

Our February Newsletter is out

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February 5, 2026

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The International IP Reference since 1924
At-a-glance Tables summarizing Key Information
International Conventions, Agreements, Treaties and Regulations
Over 200 Countries
Filing and Maintenance Requirements Worldwide

The International IP Reference since 1924

At-a-glance Tables summarizing Key Information

International Conventions, Agreements, Treaties and Regulations

Over 200 Countries

Filing and Maintenance Requirements Worldwide