Average Co-Inventor Count = 2.07
ph-index = 1
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. (2 from 215 patents)
2. Royal Appliance Mfg., Co. (1 from 234 patents)
3 patents:
1. 11885181 - Box rail backup and method
2. 11131142 - Ladder, overmolded foot and method
3. 7578025 - Battery powered cleaning attachment