Hergiswil
Switzerland
2
2011-12-01
2
2014-11-04
These are the the leading inventors for applications assigned to GFK Telecontrol AG:
GFK Telecontrol AG based in Hergiswil, CH has been assigned the rights to these inventions. The list includes both Pending Applications and Patent Grants:
Monitor device for collecting audience research data
#2 | 2007-07-19 ✅ Patent 7,826,385 granted on 2010-11-02Method for the acceptance of devices, an arrangement which can be used for this purpose, and equipment
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