Average Co-Inventor Count = 1.58
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 (5 from 105 patents)
5 patents:
1. 7284297 - Holder for alternately receiving wand or cleaning tool
2. 7272871 - Dirt vessel equipped with cleaning plunger
3. 7231688 - Dirt cup for vacuum cleaner
4. 7152275 - Dirt container for cyclonic vacuum cleaner
5. 6941615 - Rotating operating handle for vacuum cleaner