Average Co-Inventor Count = 5.36
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)
2. Emhart Inc. (1 from 591 patents)
5 patents:
1. 5787546 - Vacuum cleaner
2. D376228 - Vacuum cleaner
3. D374317 - Vacuum cleaner
4. D371651 - Vacuum cleaner
5. D370319 - Vacuum cleaner