Average Co-Inventor Count = 4.86
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. Otsuka Kagaku Kabushiki Kaisha (3 from 138 patents)
2. Taiho Pharmaceutical Company Limited (2 from 318 patents)
3 patents:
1. 5698544 - Cephem compound, process for producing the compound, and antimicrobial
2. 5635500 - Cephem compound and pharmaceutical composition containing the compound
3. 4906623 - 3-Imidazolium cephalosporin derivatives