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. Pharmacia & Upjohn Ab (1 from 76 patents)
2. Sunds Defibrator Aktiebolag (1 from 27 patents)
2 patents:
1. 5607695 - Process for the manufacture of porous cellulose matrices
2. 4921650 - Method and apparatus for liquid treatment of pulp