Average Co-Inventor Count = 2.40
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. Woodbridge Foam Corporation (1 from 56 patents)
2. Everest & Jennings Canadian Limited (1 from 3 patents)
2 patents:
1. 6142573 - Cushion element for use in a wheelchair
2. D339020 - Pillow