Average Co-Inventor Count = 1.41
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. Werner Co. (3 from 217 patents)
4 patents:
1. D935207 - One-step work platform
2. 10941616 - Step stool with rib, and method
3. D838386 - Step stool
4. D622743 - Roll groover