Average Co-Inventor Count = 4.44
ph-index = 4
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. Britannia Investment Corporation (4 from 15 patents)
2. Polk Audio, LLC (1 from 33 patents)
6 patents:
1. D803188 - Audio speaker
2. D637994 - Audio system
3. D538767 - Audio system
4. D463407 - Speaker
5. D448360 - Portion of a speaker
6. D440559 - Portion of a speaker