Average Co-Inventor Count = 1.00
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. Harper Brush Works, Inc. (3 from 15 patents)
3 patents:
1. D545063 - Push broom and squeegee combination
2. 7185388 - Power wave floor squeegee and handle connector
3. 6349444 - Shaft mounted manual cleaning implement