Average Co-Inventor Count = 6.86
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. Welch Allyn, Inc. (2 from 873 patents)
2 patents:
1. 11471042 - Vision screening apparatus with a visual acuity protocol compliance feature and an associated method of vision screening
2. 11246482 - Visual acuity examination