Average Co-Inventor Count = 2.80
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. (5 from 27,375 patents)
5 patents:
1. D325270 - Electric vacuum cleaner
2. D318542 - Power head agitator for a vacuum cleaner
3. D314072 - Electric vacuum cleaner
4. D311614 - Electric vacuum cleaner
5. 3943421 - Food processing control apparatus