Average Co-Inventor Count = 1.80
ph-index = 3
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. Motorola Corporation (3 from 20,290 patents)
3 patents:
1. D354058 - Dual-driver speaker
2. 4985926 - High impedance piezoelectric transducer
3. 4447907 - Multiple mixer spread spectrum modulation and method therefor