Average Co-Inventor Count = 4.44
ph-index = 2
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. Koninklijke Philips Corporation N.V. (1 from 21,384 patents)
2. Lifeline Systems, Inc. (1 from 28 patents)
2 patents:
1. 7783278 - Installation of a personal emergency response system
2. 6504908 - Reminder phone