Average Co-Inventor Count = 4.00
ph-index = 2
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 (2 from 429 patents)
2 patents:
1. 6598263 - Vacuum cleaner dirt collecting system with filter cleaning devices
2. 5406674 - Resiliently cushioned activating means for power assist