Average Co-Inventor Count = 4.00
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. Toyota Jidosha Kabushiki Kaisha (3 from 36,922 patents)
2. Kyosan Denki Co., Ltd. (2 from 84 patents)
3. Toyota Boshoku Kabushiki Kaisha (1 from 1,259 patents)
3 patents:
1. 7922004 - Diesel filter
2. 7906022 - Diesel filter
3. 7543561 - Swirl generator