Average Co-Inventor Count = 3.69
ph-index = 7
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. (8 from 5,073 patents)
8 patents:
1. D316921 - Vacuum cleaner brush
2. D315622 - Combined hand-held portable vacuum cleaner and brush attachment
3. 4951348 - Rotatable indexable accessory vacuum cleaner tool
4. 4947514 - Internal contact for a charging circuit
5. 4942641 - Accessory brush attachment
6. 4928346 - Hand-held vacuum cleaner with power brush
7. 4920606 - Electrical power circuit for a vacuum cleaner
8. 4841594 - Cordless vacuum cleaner with power brush