Intellectual Property Rights

The Context Tree Weighting (CTW) algorithm is protected by patents, assigned to / owned by Koninklijke KPN NV: EP0913035B1, EP0855803, US6150966, US5986591, US5864308.

All information on this site is made available for Research & Development purposes only.

For commercial utilization of the CTW algorithm, KPN NV is willing to grant licenses on reasonable terms and conditions.

For more information, please contact:

KPN NV
Intellectual Property Department
P.O. Box 95321
2509 CH The Hague
The Netherlands
+ 31 70 4460904