Average Co-Inventor Count = 3.27
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. Werner Co. (3 from 214 patents)
3 patents:
1. 11834907 - End cap with grip and rag holder
2. 11486199 - Ladder, end cap and method
3. 10689908 - End cap with grip and rag holder