Average Co-Inventor Count = 1.14
ph-index = 1
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. U.S. Philips Corporation (2 from 14,087 patents)
2. Koninklijke Philips Corporation N.V. (1 from 21,402 patents)
3. U.S. Phillips Corporation (1 from 77 patents)
4 patents:
1. 6625441 - Telephony system with a key for accessing multiple answering machines or mailboxes
2. 6370388 - Telephony device transmitting divided messages
3. 6240300 - Telephony device comprising a base station and at least a subscriber unit and method for connecting to such a telephony device
4. 6148214 - Telephone using service messages for identification signals