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. Hewlett-packard Company (3 from 9,638 patents)
3 patents:
1. 4652814 - Circuit testing utilizing data compression and derivative mode vectors
2. 4642561 - Circuit tester having on-the-fly comparison of actual and expected
3. 4598245 - Circuit tester having indirect counters