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. Boehringer Laboratories, Incorporated (2 from 35 patents)
2 patents:
1. 4986175 - Ink stamp apparatus and kit
2. D290469 - Ink stamp