Average Co-Inventor Count = 2.00
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. Other (2 from 832,680 patents)
3 patents:
1. D371197 - X-ray machine
2. 5469490 - Cold-cathode X-ray emitter and tube therefor
3. 5442677 - Cold-cathode x-ray emitter and tube therefor