Average Co-Inventor Count = 4.00
ph-index = 5
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. Duskin Franchise Kabushiki Kaisha (4 from 15 patents)
2. Duskin Franchise Kabushiki Kaisha (duskin Franchise Co., Ltd.) (1 from 2 patents)
5 patents:
1. 4479280 - Mat base plate
2. 4415620 - Mat base plate
3. D267535 - Doormat support plate or similar article
4. D265705 - Door mat base plate or similar article
5. D263541 - Door mat base plate or similar article