Average Co-Inventor Count = 4.00
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. Toyota Jidosha Kabushiki Kaisha (1 from 36,499 patents)
2. Kabushiki Kaisha Toyota Chuo Kenkyusho (1 from 1,138 patents)
3. Tosoh Corporation (1 from 893 patents)
4. Cataler Industrial Co., Ltd. (1 from 11 patents)
1 patent:
1. 5330732 - Method for purifying exhaust gases