Average Co-Inventor Count = 2.67
ph-index = 5
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. (6 from 215 patents)
2. R. D. Werner Co., Inc. (1 from 21 patents)
7 patents:
1. 7234203 - Locking hinge for folding ladder
2. 7165649 - Positioning system for folding ladder and method of installation of folding ladder using positioning system
3. 7044270 - Posting ladder
4. 6994184 - Stowable ladder configured for installation in an opening
5. 6991063 - Stowable ladder configured for installation in an opening
6. 5653306 - Ladder system including a caster bracket and method of forming
7. 5067588 - Ladder lash