Average Co-Inventor Count = 1.71
ph-index = 3
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 Libman Company (4 from 301 patents)
4 patents:
1. D667191 - Dustpan
2. 7721380 - Push broom bracket
3. 7159266 - Brush handle construction
4. 6925678 - Dust pan with multiple handle options