A world leader
delivering intellectual property solutions across the innovation lifecycle.

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6000 Clients

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1M Users

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30 Countries


Since 1978

900 People

How great Patent Filers work.

Accessing all your IP support services in a single place, reduces operational risks and improves efficiency. A streamlined patenting process brings more transparency, productivity, consistency and significant savings to your organization.

The world’s top filers rely on us to meet their IP prosecution process challenges.

Software & Services

Discover some of our strategic offers and solutions for your IP-driven success

Intellectual Property
Search and Analysis


Create powerful patent or trademark searching and analysis.

Intellectual Asset Management


Align your intellectual property portfolio with business strategy.

Prior Art
and Drafting


Combine patentability searches and drafting services to generate significant savings.

International Filing
and Translation


We are the world’s largest international patent filing company.

Open Innovation Management


Data, insights and smart processes to boost external innovation.

Resources Hub

A knowledge-sharing culture

Questel provides a free place to learn about Intellectual Property and Innovation. Stay up-to-date on your industry best practices.

Corporate Development