Average Co-Inventor Count = 5.22
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 (6 from 301 patents)
6 patents:
1. D1051539 - Lever for mops
2. D973295 - Bucket
3. D973294 - Mop
4. D936317 - Cleaning tool
5. D930309 - Broom head
6. D930310 - Broom head