Average Co-Inventor Count = 1.33
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. Touchstone Applied Science Associates, Inc. (1 from 3 patents)
2. The Sampson Corporation (1 from 3 patents)
2 patents:
1. 5102341 - Test answer and score sheet device
2. 4064567 - Prosthesis-to-bone interface system