Average Co-Inventor Count = 7.84
ph-index = 3
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. (3 from 27,375 patents)
3 patents:
1. 7174593 - Vacuum cleaner having an ion generator
2. 7131164 - Vacuum cleaner and suction nozzle employed therein
3. 6536073 - Electric vacuum cleaner