Average Co-Inventor Count = 4.05
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. Sumitomo Pharmaceuticals Company Limited (5 from 174 patents)
5 patents:
1. 6599895 - &bgr;-lactam compounds and process for producing the same
2. 6399658 - Composition containing ascorbic acid
3. 6265396 - &bgr;-lactam compounds and process for preparing the same
4. 5750686 - Carbapenem compounds and process for producing the same
5. 5227376 - .beta.-lactam compounds and their production