Average Co-Inventor Count = 3.80
ph-index = 6
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. Mitsubishi Denki Kabushiki Kaisha (7 from 21,351 patents)
7 patents:
1. D551268 - Electric discharge machine
2. D304377 - Fluorescent lamp
3. D292738 - Fluorescent lamp
4. D292320 - Fluorescent lamp
5. D287407 - Fluorescent lamp
6. D287288 - Fluorescent lamp
7. D282490 - Fluorescent lamp