Average Co-Inventor Count = 3.09
ph-index = 9
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. Harper Brush Works, Inc. (10 from 15 patents)
10 patents:
1. D641116 - Nesting bucket
2. D636139 - Jumbo debris pan
3. D630857 - Utility scrub brush
4. D628468 - Clip for attachment to a broom
5. D622134 - Top broom clip
6. D601769 - Debris pan
7. D586519 - Lobby dust pan
8. D560482 - Handle clip
9. D546012 - Double bucket
10. D544669 - Household bucket