Average Co-Inventor Count = 3.53
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. Matsushita Electric Industrial Co., Ltd. (8 from 27,375 patents)
8 patents:
1. D573759 - Electric vacuum cleaner
2. D570563 - Vacuum cleaner
3. D570567 - Vacuum cleaner
4. D566915 - Nozzle for electric vacuum cleaner
5. D564159 - Nozzle for electric vacuum cleaner
6. D510438 - Oxygen concentrator
7. D487827 - Vacuum cleaner nozzle
8. D487828 - Vacuum cleaner nozzle