Average Co-Inventor Count = 4.00
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. Bayer Aktiengesellschaft (2 from 12,157 patents)
2 patents:
1. 4166002 - Polyamines containing acid groups that are useful in papermaking
2. 3932363 - Polyamines containing acid groups