Average Co-Inventor Count = 3.43
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. Nihon Cement Co., Ltd. (2 from 24 patents)
2 patents:
1. 5302329 - Process for producing .beta.-sialon based sintered bodies
2. 4818511 - Process and apparatus for producing non-oxide compounds