Average Co-Inventor Count = 1.80
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. Hopkins Manufacturing Corporation (3 from 208 patents)
3 patents:
1. D345057 - Snow brush
2. D337436 - Snow brush with removable scraper
3. D336783 - Snow brush with removable scraper and folding handle