Average Co-Inventor Count = 2.47
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. Kyowa Hakko Kogyo Co., Ltd. (2 from 730 patents)
2. N.e. Chemcat Corporation (1 from 87 patents)
3 patents:
1. 9339794 - Catalyst composition for exhaust gas purification and exhaust gas purifying catalyst for automobiles
2. 5726325 - Tricyclic compounds
3. 5661147 - Imidazoquinazoline derivatives