Average Co-Inventor Count = 1.38
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. Dialfone, Ltd. (2 from 3 patents)
2. Mattel, Inc. (1 from 1,703 patents)
3 patents:
1. 8757171 - Finger positioning device for a printer
2. D350131 - Telephone
3. D347633 - Telephone