Average Co-Inventor Count = 2.57
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. David Clark Company, Inc. (3 from 43 patents)
3 patents:
1. 5911314 - Headset ear seal
2. 5821468 - Laminated nap comfort cover for ear seal
3. D316414 - Cushion for attachment to the arcuate headband connecting the earpiece