Average Co-Inventor Count = 2.00
ph-index = 1
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. Celanese Gmbh (2 from 824 patents)
2 patents:
1. 4420641 - Formaldehyde production
2. 4386014 - Catalyst of supported silver and lead for the production of formaldehyde