Average Co-Inventor Count = 4.00
ph-index = 1
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. Other (1 from 832,718 patents)
2. Barnes Engineering Company (1 from 26 patents)
2 patents:
1. 4884855 - Narrow-band optical absorption filter
2. 4388413 - Silver halide glasses