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Koninklijke Ptt Nederland N.v.

USPTO Granted Patents = 159

CIPO Patents = 3

Trademarks = 2

Forward Citations = 2,542

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164 inventors (with patents filed for the assignee):

Johannes Jacobus Van Der Tol (18 out of 20 patents)

Mattijs Oskar Van Deventer (12 out of 66 patents)

Willem Griffioen (8 out of 45 patents)

4. Arian Koster (6 out of 9 patents)

5. Rob Pieterse (6 out of 12 patents)

6. Jacob Cornelis Van Der Wal (5 out of 11 patents)

7. Martin Klaas De Lange (5 out of 5 patents)

8. John Gerard Beerends (5 out of 6 patents)

9. Andries Pieter Hekstra (4 out of 33 patents)

10. Johan Van Tilburg (4 out of 4 patents)

11. Martinus B Diemeer (4 out of 9 patents)

12. Dolf A Schinkel (4 out of 4 patents)

13. Frank Muller (3 out of 17 patents)

14. Albertus Feiken (3 out of 8 patents)

15. Mark Albert Pors (3 out of 3 patents)

Core Competencies:

Character Recognition

Chip Card Payment

Moisture Removal

Telecommunication Systems

Cable Installation

Wireless Connection Setup

Smart Card Security

Signal Quality Determination

Optical Networks

Data Packet Processing

Electronic Payment Systems

Intelligent Network Interactions

159 patents: Sort by Forward Citations

1. 6240209 - Method for deriving character features in a character recognition system (2001-05-29),

2. RE37067 - Chip card based payment system having an on-card flag for specifying proper completion of a prior card balance replenishment session (2001-02-27),

3. 6176022 - Removing moisture from hollow guiding members such as cable ducts (2001-01-23),

4. 6169908 - Telecommunication system (2001-01-02),

5. 6129341 - Device for installing cables (2000-10-10),

6. 6115937 - Removing moisture from hollow guiding members (2000-09-12),

7. 6115414 - System for setting up a wireless connection for exchanging information (2000-09-05),

8. 6080064 - Device for playing games via a communications network, and a game system (2000-06-27),

9. 6073238 - Method of securely loading commands in a smart card (2000-06-06),

10. 6064966 - Signal quality determining device and method (2000-05-16),

11. 6064946 - Signal quality determining device and method (2000-05-16),

12. 6064858 - Ground-station system, ground station, device, method (2000-05-16),

13. 6062472 - System and method for increasing a value of an electronic payment card (2000-05-16),

14. 6061664 - System for facilitating the ordering and paying of services by means of (2000-05-09),

15. 6042006 - Authentication system wherein definition signals of two devices are (2000-03-28),

Koninklijke PTT Nederland N.V. (KPN) is a Dutch telecommunications and IT company. It was formerly known as the state-owned postal and telecommunications company, PTT. KPN offers a wide range of services including fixed and mobile telephony, internet and TV to consumers and businesses. They are known for their reliable network infrastructure and innovative solutions. For more information, visit their website.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

159 Patents

#3 in

#55 in Netherlands

#5,033 in the World

Koninklijke Ptt Nederland N.v.

Forward Citations = 2,542

164 inventors:

Johannes Jacobus Van Der Tol (18 out of 20 patents)

Mattijs Oskar Van Deventer (12 out of 66 patents)

Willem Griffioen (8 out of 45 patents)

4. Arian Koster (6 out of 9 patents)

5. Rob Pieterse (6 out of 12 patents)

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