Average Co-Inventor Count = 4.61
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. Schering Aktiengesellschaft (3 from 1,384 patents)
3 patents:
1. 4155991 - Vaginal ring
2. 4034749 - Intrauterine contraceptive device
3. 4012496 - Vaginal ring