Average Co-Inventor Count = 3.00
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. Merck + Co., Inc. (2 from 4,770 patents)
2. Merck Frosst Canada, Inc. (2 from 212 patents)
2 patents:
1. 4954638 - Leukotriene by amides and hydrazides
2. 4767745 - Conjugates of leukotrienes with proteins