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Global Inventor Statistics: Tracking 5 MM plus Utility Patents and 5 MM plus Inventors (1/1/2002 - 3/21/2023)

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Top Prolific Inventors

  • 1. Christopher Richard Jacques de Kadt
    61
  • 2. Malan De Villiers
    56
  • 3. James Alfred Gordon Greenfield
    41
  • 4. Marcin Piotr Kowalski
    40
  • 5. David Everard Brown
    39
  • 6. Frederick Johannes Bruwer
    38
  • 7. Hendrikus Johannes van der Meijden
    36
  • 8. Ulrich Hahnle
    34
  • 8. Roland Alexander Paterson-Jones
    34
  • 10. Ashley D. Delport
    33

Most Innovative Cities

  • 1. Cape Town

    547

  • 2. Johannesburg

    478

  • 3. Pretoria

    351

  • 4. Gauteng

    147

  • 5. Stellenbosch

    125

  • 6. Randburg

    106

  • 7. Centurion

    106

  • 8. Durban

    105

  • 9. Vanderbijlpark

    100

  • 10. Western Cape

    97

Innovative Companies

  • 1.
    SASOL TECHNOLOGY PROPRIETARY LIMITED

    106

  • 2.
    CSIR

    79

  • 3.
    DETNET SOUTH AFRICA (PTY) LTD

    38

  • 4.
    Sasol Technology (Pty) Ltd

    33

  • 5.
    AZOTEQ (PTY) LTD

    32

  • 6.
    SASOL TECHNOLOGY (PTY) LIMITED

    23

  • 7.
    The South African Nuclear Energy Corporation Limited

    16

  • 8.
    Technology Finance Corporation (Proprietary) Limited

    12

  • 9.
    TOBACCO RESEARCH AND DEVELOPMENT INSTITUTE (PROPRIETARY) LIMITED

    11

  • 10.
    Strait Access Technologies Holdings (PTY) LTD

    11

Top Universities

  • 1. UNIVERSITY OF CAPE TOWN

    74

  • 2. Stellenbosch University

    58

  • 3. UNIVERSITY OF THE WITWATERSRAND, JOHANNESBURG

    33

  • 4. University of Pretoria

    27

  • 5. UNIVERSITY OF JOHANNESBURG

    9

  • 6. UNIVERSITY OF THE FREE STATE

    9

  • 7. University of the Witwatersrand

    7

  • 8. Nelson Mandela Metropolitan University

    7

  • 9. Tshwane University of Technology

    5

  • 10. University of South Africa

    4

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