Average Co-Inventor Count = 1.00
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. Other (1 from 832,718 patents)
2. Ambu International A/s (1 from 21 patents)
2 patents:
1. 5588957 - Cervical collar
2. 5366438 - Cervical collar