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. Buckbee-mears Company (2 from 19 patents)
2 patents:
1. 4013498 - Etching apparatus for accurately making small holes in thick materials
2. 3971682 - Etching process for accurately making small holes in thick materials