Average Co-Inventor Count = 2.18
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. Black Decker Inc. (4 from 5,073 patents)
4 patents:
1. D333891 - Filter for a vacuum cleaner
2. D330824 - Wall mounting storage bracket for a vacuum cleaner and attachments
3. 5134751 - Hand-held vacuum cleaner
4. 5105505 - Hand-held vacuum cleaner