Average Co-Inventor Count = 3.00
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. Armstrong World Industries, Inc. (3 from 448 patents)
3 patents:
1. 4689259 - Floor tile product and process
2. 4504523 - Durable, low-maintenance flooring tile
3. 4418109 - Durable, low-maintenance flooring tile