About us


IdeaNav helps inventors protect their ideas via online systems – Iptica and GlobalIPCo.

Who we are

IdeaNav was formed in 2007 and includes:

Patent Attorneys / Directors:
Anthony van Zantwijk (BSc(Civ)Eng, LLB, LLM(Tax)),

McLean Sibanda (MSc(Met)Eng, LLB, LLM-Commercial, PhD)

Paulo Lopes (MSc(Mech)Eng, LLB, HDip(Tax))

Trademark Attorney:
Taya Lombard (LLB)

Assistant: Lesley Mackell.

The company was spun out of Sibanda & Zantwijk Patent Attorneys (a firm specialising in intellectual property commercialisation).

Why S&Z?

  • S&Z is the top filer of South African patents (2022, 2023).
  • S&Z is the exclusive agent for GlobalIPCo in South Africa.
  • The South African component of SANi combination patents are filed by S&Z.
  • S&Z patent attorneys used to work at one of South Africa’s biggest patent firms, Spoor and Fisher.


We support the GlobalIPCo and Iptica online systems, which offer affordable online patent, design and trademark services.


We embrace online systems that reduce the cost to file and prosecute patents, trademarks and designs to grant. In this regard, we work closely with GlobalIPCo – a software company that develops: IP management systems (that we use to file and report on applications); and online filing systems (for which we are the exclusive South African agent).

Provisional Patent Online

Our online patent, trademark and design renewal system is also popular among multinational companies to reduce their cost of holding patents.

Latest Specials
  • Online SA trademark filing

    Only $199

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  • Save up to 70% on renewal fees

    Save up to 70% on patent renewal fees / annuities by paying them online

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  • Trademark search

    R2,500 + vat

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  • Register a Trademark in South Africa

    R4,090 + vat

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  • File provisional patent

    Only $199

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  • EU Design Registration

    Only $625

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  • Patent Pending Number

    Only $199

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  • Online SA design filing

    Only $299

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Get started with the patent process

Get in touch

Contact us

Intangible Consulting (Pty) Ltd
9 Kruger St
South Africa

T +27 (0)11 483 1439
T +27 (0)11 483 3128 (alt.)