Average Co-Inventor Count = 3.87
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. Otsuka Kagaku Kabushiki Kaisha (4 from 138 patents)
2. Taiho Pharmaceutical Company Limited (2 from 318 patents)
4 patents:
1. 6403789 - Method of halogenating hydroxyl group
2. 6194567 - Halogenating agent and process for halogenating hydroxyl group
3. 5698544 - Cephem compound, process for producing the compound, and antimicrobial
4. 5635500 - Cephem compound and pharmaceutical composition containing the compound