Average Co-Inventor Count = 3.27
ph-index = 3
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. Hoffmann-la Roche Inc. (3 from 4,948 patents)
3 patents:
1. 4368265 - Culturing a strain of nocardia to produce antibiotic X-14868A
2. 4278663 - Antibiotic X-14868A, B, C and D
3. 4033823 - Process to produce lysocellin