Average Co-Inventor Count = 1.71
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. Panasonic Corporation of North America (4 from 105 patents)
4 patents:
1. 7343641 - Dirt collection assembly with volcanic airflow
2. 7284297 - Holder for alternately receiving wand or cleaning tool
3. 7210196 - Bagless vacuum cleaner and dirt collection assembly
4. 6941615 - Rotating operating handle for vacuum cleaner