Average Co-Inventor Count = 5.38
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. Pella Corporation (3 from 127 patents)
2. Other (1 from 832,718 patents)
4 patents:
1. 11578528 - Sill systems for sliding fenestration units
2. 9556668 - Weather seal system for double hung windows
3. 9062490 - Weather seal system for double hung window
4. 8376019 - Window assembly with movable interior sash