Average Co-Inventor Count = 2.67
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. Plantronics, Inc. (4 from 738 patents)
4 patents:
1. 4917504 - Communications headset
2. 4720857 - Miniaturized headset for two-way voice communication
3. 4617431 - Voice tube assemblies for post-auricle headsets
4. 4335281 - Post-auricle contoured headset for two-way voice communication