Average Co-Inventor Count = 2.40
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. Martin Audio Limited (3 from 24 patents)
3 patents:
1. D641006 - Loudspeaker
2. D582892 - Loudspeaker
3. D575271 - Loudspeaker