Average Co-Inventor Count = 1.00
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. Leiras Oy (1 from 40 patents)
2. Huhtamaki Oy (1 from 7 patents)
3. Jarmo Toikka (0 patent)
2 patents:
1. 5574151 - Process for the preparation of sennosides A and B
2. 5233034 - Process for the purification of hemin, a novel derivative and process