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100th Anniversary Katzarov's Manual on Industrial Property
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Conference in Bulgaria 12.11.24

Celebrating a century of Katzarov’s Manual on Industrial Property (formerly Katzaroff’s Patent Directory). The world’s 1st patent directory!

November 21, 2024

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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