DT Du Preez Attorneys

Intellectual Property Law Experts

Global protection for your creativity

Patent & Trademark Attorneys in Centurion, Gauteng and George, Western Cape, South Africa

Count on the patent and trademark attorneys at DT Du Preez Attorneys for the worldwide protection of your creativity. We have obtained patents in a variety of fields and we offer a large array of intellectual property services.

Intellectual Property

Our company is a full-service patent, registered design, trade mark, copyright, and unfair competition rights practice and encompasses various aspects of intellectual property law. Learn More


A patent is a monopoly or an exclusive right granted for a specified period of time by the State to an inventor, or to another person, in exchange for a full disclosure of the invention to the public. Learn More

Trade Marks

You may be in the process of building a reputation of your product. If your product is a commercial success, competitors may try to imitate your product and capitalise on your goodwill and reputation. Learn More

Registered Designs

A registered design protects the pattern and/or shape and/or configuration and/or ornamentation of a design, as applied to any article. It forms an essential part of your business IP. Learn More


In basic terms, Copyright is the right to prevent others from copying, or from using for commercial gain, that which belongs to you. Learn More

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DT DU PREEZ ATTORNEYS prepares, files and prosecutes provisional and complete patent applications before the South African Patent Office and has built up a working relationship with foreign patent colleagues throughout the World for the preparation, filing and prosecution of patent applications Worldwide. DT DU PREEZ ATTORNEYS has more than 11 years experience in drafting of patent specifications across a variety of technological fields.

Registered Designs

DT DU PREEZ ATTORNEYS prepares, files and prosecutes registered design applications before the South African Designs Office and has built up a working relationship with foreign patent and design law colleagues throughout the World for the preparation, filing and prosecution of registered design applications Worldwide.

Trade Marks

When you need to monopolise your business name, slogan, logo or any name of your product or your service, give us a call. DT DU PREEZ ATTORNEYS prepare, file and prosecute trade mark applications with the South African Trademark Office, and if necessary we can register your mark Worldwide as well, in association with foreign patent colleagues throughout the World.


DT DU PREEZ ATTORNEYS prepares license and assignment agreements for patents, registered designs, trade marks and copyright.


Once you have created a work eligible for copyright protection and reduced it to material form, you automatically have a right to authorise certain acts in respect of that work in South Africa and in other Berne Convention countries. We can also assist in defining and including copyrighted works in agreements with other parties. For example, you may require our assistance for drafting contracts when you engage the services of others to generate literary works, artwork or software.


Our services also include conducting patent novelty and patent validity and freedom to operate searches on selected international patent databases to which we have access to. We also conduct trademark availability and registrability searches.


Our services further include drafting of legal opinions in respect of various Intellectual Property matters. If you are concerned about whether someone is infringing on your copyright, patent, design or trade mark rights or whether you are infringing on any IP rights of another, please contact DT DU PREEZ ATTORNEYS.


In addition, DT DU PREEZ ATTORNEYS has extensive litigation experience and can either provide or guide you to experienced litigation services. Litigation services extend to all intellectual property law areas including patents, registered designs, copyright, and trade marks.


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Meet Our Attorneys

Theo Du Preez

Theo is the owner and founder of DT Du Preez Attorneys. He is a Patent and Intellectual Property Law Attorney.

He is a practicing attorney of the High Court of South Africa and a Registered South African Patent Attorney.

Theo qualified as a Chemical Engineer when he obtained a Bachelor of Engineering (Chemistry) degree at the North West University, South Africa. Thereafter he worked in the chemical and metallurgical industry for several years before he obtained an LLB degree at the University of South Africa. Following which, Theo passed the South African Patent Examination Board Examinations to enable him to practice as a Patent Attorney.

Theo is an accomplished patent attorney with more than 10 years Intellectual Property Law experience and a sound technical background which facilitates dealing and understanding complex technical inventions, often invented by engineers and researchers.

Theo assists clients with conducting patent subject matter, freedom to operate, proprietor and equivalent searches within his area of technical specialism; as well as drafting, preparing and filing of South African and foreign patent and design applications with specific focus on chemical and process related subject matter.

Because of Theo’s engineering industry experience, he has recently drafted and prosecuted a number patent specifications relating to metallurgical and mechanical inventions.

Physical Address

Ground Floor, Southdowns Ridge Office Park
Corner John Vorster Drive & Nelmapius Drive
South Africa



012 003 3401

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