Average Co-Inventor Count = 3.09
ph-index = 6
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. (14 from 215 patents)
2. Preformed Line Products Company (1 from 119 patents)
15 patents:
1. 10208538 - Pipe tradesman's ladder and method
2. 10184292 - Stepladder, system and method
3. 8967333 - Pump jack pole brace latch and method
4. 8944743 - Ramp bottom transition foot
5. 8631903 - Pump jack pole brace latch and method
6. 8286753 - Steel pump jack with safety latch and method
7. 8256053 - Ramp bottom transition foot
8. 7857096 - Steel pump jack with safety latch and method
9. D586000 - Step stool
10. D576291 - Step stool
11. 7234203 - Locking hinge for folding ladder
12. 7165649 - Positioning system for folding ladder and method of installation of folding ladder using positioning system
13. 7038137 - Fiber closure system
14. 6994184 - Stowable ladder configured for installation in an opening
15. 6991063 - Stowable ladder configured for installation in an opening