Average Co-Inventor Count = 4.72
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. The Hoover Comapny (5 from 429 patents)
5 patents:
1. 7188389 - Dirt collecting system for a floor care appliance
2. 7143469 - Dirt collecting system
3. D504548 - Upper housing for a vacuum cleaner
4. 6596044 - Dirt collecting system for a vacuum cleaner
5. D458670 - Filter cartridge top