Average Co-Inventor Count = 2.00
ph-index = 2
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. Gordon Brush Mfg. Co., Inc. (3 from 3 patents)
3 patents:
1. D871006 - Broom head
2. 10188201 - Broom
3. D827963 - Broom head