Average Co-Inventor Count = 2.00
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. Thomas Industries, Inc. (2 from 159 patents)
2 patents:
1. 5085474 - Reversible door latch opener
2. 4839988 - Panic exit device