Average Co-Inventor Count = 4.00
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. J.w. Speaker Corporation (3 from 45 patents)
3 patents:
1. D750309 - Lighting device
2. D750311 - Lighting device
3. D713592 - Lighting device