Average Co-Inventor Count = 6.13
ph-index = 4
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. (4 from 27,375 patents)
4 patents:
1. 7131164 - Vacuum cleaner and suction nozzle employed therein
2. 6901624 - Self-moving cleaner
3. 5216777 - Fuzzy control apparatus generating a plurality of membership functions
4. 4942640 - Automatic electric vacuum cleaner with temporary manual override